Once the foliage instances lost the link to Landscape, Reapply tools also doesn't do anything on those foliage
See the Attached video for reproduce steps [Link Removed]
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-60151 in the post.
|Component||UE - World Creation - Worldbuilding Tools - Foliage|
|Created||Jun 8, 2018|
|Updated||Feb 3, 2023|