There also does not appear to be any code to handle r.ForceLOD for HISMs.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-46298 in the post.
|Component||UE - World Creation - Worldbuilding Tools - Foliage|
|Created||Jun 21, 2017|
|Resolved||Aug 18, 2021|
|Updated||Aug 18, 2021|