diff --git a/lib/rails_ext/active_storage_analyze_job_skip_detached.rb b/lib/rails_ext/active_storage_analyze_job_skip_detached.rb
new file mode 100644
index 000000000..efa671335
--- /dev/null
+++ b/lib/rails_ext/active_storage_analyze_job_skip_detached.rb
@@ -0,0 +1,17 @@
+# Skip analysis for blobs whose attachments have already been destroyed.
+#
+# When an upload is deleted before AnalyzeJob runs, PurgeOnLastAttachment has
+# already destroyed the attachment row and enqueued PurgeJob for the blob's S3
+# object. Analyzing at this point hits a missing key. Same check as
+# PurgeOnLastAttachment#purge_blob_if_last.
+module ActiveStorageAnalyzeJobSkipDetached
+  def perform(blob)
+    return unless blob.attachments.exists?
+
+    super
+  end
+end
+
+ActiveSupport.on_load :active_storage_blob do
+  ActiveStorage::AnalyzeJob.prepend ActiveStorageAnalyzeJobSkipDetached
+end
diff --git a/lib/rails_ext/active_storage_analyze_job_suppress_broadcasts.rb b/lib/rails_ext/active_storage_analyze_job_suppress_broadcasts.rb
index 030232ee4..ba22603b6 100644
--- a/lib/rails_ext/active_storage_analyze_job_suppress_broadcasts.rb
+++ b/lib/rails_ext/active_storage_analyze_job_suppress_broadcasts.rb
@@ -4,8 +4,6 @@
 # there is currently a bug https://github.com/rails/rails/issues/55144
 module ActiveStorageAnalyzeJobSuppressBroadcasts
   def perform(blob)
-    return unless blob.attachments.exists?
-
     Board.suppressing_turbo_broadcasts do
       Card.suppressing_turbo_broadcasts do
         super
diff --git a/test/lib/rails_ext/active_storage_analyze_job_suppress_broadcasts_test.rb b/test/lib/rails_ext/active_storage_analyze_job_skip_detached_test.rb
similarity index 88%
rename from test/lib/rails_ext/active_storage_analyze_job_suppress_broadcasts_test.rb
rename to test/lib/rails_ext/active_storage_analyze_job_skip_detached_test.rb
index 1015c957c..5ab5edaff 100644
--- a/test/lib/rails_ext/active_storage_analyze_job_suppress_broadcasts_test.rb
+++ b/test/lib/rails_ext/active_storage_analyze_job_skip_detached_test.rb
@@ -1,6 +1,6 @@
 require "test_helper"
 
-class ActiveStorageAnalyzeJobSuppressBroadcastsTest < ActiveSupport::TestCase
+class ActiveStorageAnalyzeJobSkipDetachedTest < ActiveSupport::TestCase
   test "skips analysis when blob has no attachments" do
     blob = ActiveStorage::Blob.create_and_upload!(
       io: StringIO.new("x" * 1024), filename: "orphan.txt", content_type: "text/plain"