Thanks a ton for you for your response!
Sadly, the files are automatically compiled at the launch of the editor (don’t really know why tbh, since it’s a marketplace plugin that should already be compiled), so their last modification is at the start of the engine.
After some more investigation, someone pointed to me that it was a known issue that impacted all marketplace plugins:
For anyone finding this, you can fix temporary this bug by adding bUsePrecompiled = true to the .Build.cs file of the impacted plugins (don’t submit a marketplace update with this, though)