A licensee has reported an issue with Perforce source control integration. The issue is related to the source file for an asset that was imported into the editor. If this source file is also checked into perforce, the source file gets move along with the .uasset if it is moved in the Editor while the source control integration is enabled.
The issue here is either that the source file is moved with the .uasset when it is moved or that the source file is not marked for add when it is moved.
This occurred in 4.20
There's no existing public thread on this issue, so head over toAnswerHub just mention UE-70630 in the post.