When importing layer information to a landscape the engine will freeze and consume all available memory. Unable to test in 4.19 due to provided project being made in 4.20. I have attached a log from the project where it seems to be building the same textures in a loop.
Found in 4.20 CL# 4302132 and 4.21 CL# 4370874
The editor will freeze and consume all available memory over time.
The layer would be imported
There's no existing public thread on this issue, so head over toAnswerHub just mention UE-64175 in the post.