So I’m having the EXACT same problem as Geotype and it’s 4 years later. Everything runs fine but then when I open the Terrain Editor it just becomes unresponsive. This has been happening for awhile. I recently upgrade to Lumberyard Editor 126.96.36.199 from 188.8.131.52 and that didn’t seem to fix the problem.
This problem started around the time I was adding my terrain to the map (which was quite large, max size if I recall). And after that it will no longer allow me access. I tried deleting the cache files and any assets I may have added with no fix. My fresh install of course didn’t fix it.
So I’m going to use CCleaner to unistall and clean out my registry. But my god, what would be causing an issue that requires me to clean out my registry with a fresh install? I really want to find a REAL fix for this as this fresh install is just a work around, not a fix in my opinion.
I wonder who else has this issue. It took me over a week to find this thread of someone who experienced my situation. All searches for my problem keep leading me back to the “Lumberyard Known Issues” page or “Lumberyard Debugging” page. Both of which hasn’t helped me in this situation. So can we get some people to look into this problem and possibly fix this at it’s root? I’m hoping it’s not an issue with having max size terrain.