diff --git a/.github/workflows/config.yml b/.github/workflows/config.yml
index d1950c325d..d59774b73c 100644
--- a/.github/workflows/config.yml
+++ b/.github/workflows/config.yml
@@ -51,7 +51,7 @@ jobs:
           path: |
             deps
             _build
-          key: ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-mixlockhash_19-${{ hashFiles('mix.lock') }}
+          key: ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-mixlockhash_20-${{ hashFiles('mix.lock') }}
           restore-keys: |
             ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-
 
@@ -111,7 +111,7 @@ jobs:
           path: |
             deps
             _build
-          key: ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-mixlockhash_19-${{ hashFiles('mix.lock') }}
+          key: ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-mixlockhash_20-${{ hashFiles('mix.lock') }}
           restore-keys: |
             ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-"
 
@@ -135,7 +135,7 @@ jobs:
           path: |
             deps
             _build
-          key: ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-mixlockhash_19-${{ hashFiles('mix.lock') }}
+          key: ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-mixlockhash_20-${{ hashFiles('mix.lock') }}
           restore-keys: |
             ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-"
 
@@ -158,7 +158,7 @@ jobs:
           path: |
             deps
             _build
-          key: ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-mixlockhash_19-${{ hashFiles('mix.lock') }}
+          key: ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-mixlockhash_20-${{ hashFiles('mix.lock') }}
           restore-keys: |
             ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-"
 
@@ -167,7 +167,7 @@ jobs:
         id: dialyzer-cache
         with:
           path: priv/plts
-          key: ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-dialyzer-mixlockhash_19-${{ hashFiles('mix.lock') }}
+          key: ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-dialyzer-mixlockhash_20-${{ hashFiles('mix.lock') }}
           restore-keys: |
             ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-dialyzer-"
 
@@ -198,7 +198,7 @@ jobs:
           path: |
             deps
             _build
-          key: ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-mixlockhash_19-${{ hashFiles('mix.lock') }}
+          key: ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-mixlockhash_20-${{ hashFiles('mix.lock') }}
           restore-keys: |
             ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-"
 
@@ -224,7 +224,7 @@ jobs:
           path: |
             deps
             _build
-          key: ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-mixlockhash_19-${{ hashFiles('mix.lock') }}
+          key: ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-mixlockhash_20-${{ hashFiles('mix.lock') }}
           restore-keys: |
             ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-"
 
@@ -253,7 +253,7 @@ jobs:
           path: |
             deps
             _build
-          key: ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-mixlockhash_19-${{ hashFiles('mix.lock') }}
+          key: ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-mixlockhash_20-${{ hashFiles('mix.lock') }}
           restore-keys: |
             ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-"
 
@@ -301,7 +301,7 @@ jobs:
           path: |
             deps
             _build
-          key: ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-mixlockhash_19-${{ hashFiles('mix.lock') }}
+          key: ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-mixlockhash_20-${{ hashFiles('mix.lock') }}
           restore-keys: |
             ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-"
 
@@ -347,7 +347,7 @@ jobs:
           path: |
             deps
             _build
-          key: ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-mixlockhash_19-${{ hashFiles('mix.lock') }}
+          key: ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-mixlockhash_20-${{ hashFiles('mix.lock') }}
           restore-keys: |
             ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-"
 
@@ -404,7 +404,7 @@ jobs:
           path: |
             deps
             _build
-          key: ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-mixlockhash_19-${{ hashFiles('mix.lock') }}
+          key: ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-mixlockhash_20-${{ hashFiles('mix.lock') }}
           restore-keys: |
             ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-"
 
@@ -458,7 +458,7 @@ jobs:
           path: |
             deps
             _build
-          key: ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-mixlockhash_19-${{ hashFiles('mix.lock') }}
+          key: ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-mixlockhash_20-${{ hashFiles('mix.lock') }}
           restore-keys: |
             ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-"
 
@@ -523,7 +523,7 @@ jobs:
           path: |
             deps
             _build
-          key: ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-mixlockhash_19-${{ hashFiles('mix.lock') }}
+          key: ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-mixlockhash_20-${{ hashFiles('mix.lock') }}
           restore-keys: |
             ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-"
 
@@ -587,7 +587,7 @@ jobs:
           path: |
             deps
             _build
-          key: ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-mixlockhash_19-${{ hashFiles('mix.lock') }}
+          key: ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-mixlockhash_20-${{ hashFiles('mix.lock') }}
           restore-keys: |
             ${{ runner.os }}-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ env.MIX_ENV }}-deps-"
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1a475f76c1..943b528615 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@
 ### Fixes
 
 - [#7758](https://github.com/blockscout/blockscout/pull/7758) - Remove limit for configurable fetchers
+- [#7764](https://github.com/blockscout/blockscout/pull/7764) - Fix missing ranges insertion and deletion logic
 
 ### Chore
 
diff --git a/apps/explorer/lib/explorer/utility/missing_block_range.ex b/apps/explorer/lib/explorer/utility/missing_block_range.ex
index 0d5d8bd3fc..b9355d0c61 100644
--- a/apps/explorer/lib/explorer/utility/missing_block_range.ex
+++ b/apps/explorer/lib/explorer/utility/missing_block_range.ex
@@ -57,7 +57,7 @@ defmodule Explorer.Utility.MissingBlockRange do
         update_range(range, %{to_number: min_number})
 
       {%__MODULE__{} = range_1, %__MODULE__{} = range_2} ->
-        delete_ranges_between(range_2.from_number, range_1.from_number)
+        delete_ranges_between(range_2.from_number + 1, range_1.from_number)
         update_range(range_1, %{from_number: range_2.from_number})
 
       _ ->
@@ -92,7 +92,7 @@ defmodule Explorer.Utility.MissingBlockRange do
         update_to_number_or_delete_range(range_2, max_number + 1)
 
       _ ->
-        :ok
+        delete_ranges_between(max_number, min_number)
     end
   end