Thank you for bringing this up again. Unfortunately, we were not able to solve this problem in an easy way. The problem is a bug in the AMD Crimson driver. There is a workaround for this Problem, and we will have it on the beta, but unfortunately, it would cost us a lot of time to solve it also for the beta and it would not help the development of the game at all.
For that reason, we decided to bring the beta a bit faster and postpone the fix for this problem to beta. Maybe AMD itself will make a fix for their driver, as we have contacted them about it.
Your other way to solve this problem is, to use an older Catalyst driver, but I would say an early beta is not worth this effort, because the problem will still solve itself for you as a player. Unfortunately it will take some more time, as I said till beta, but it will be solved.