See Description field for links to QFE installers for this issue.
This fix will be included in 4.25.3
Projects created in previous engine versions fail to build in 4.25.2
Moving Engine Plugin folder to Project Plugin location
QFE Installer links
A fix for the blocking issue related to opening projects that have Marketplace Plugins enabled in 4.25.2 can be found here:
Results: The project fails to open
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-95865 in the post.