5.1 is here already? geez, I can’t keep up. Thanks for posting the error, I don’t know the answer but thanks so I know to keep away from 5.1 for now as i’m working with WebGL myself and don’t need any further issues to deal with. = \
On second thought, I just reviewed the release notes and there are plenty of important updates in 5.1, so I might give it a go this weekend. If I run into any related issues and find a fix, i’ll be sure to post it here.