and Bandicam is installed in C:\Program Files (x86)\Bandicam
Yep, I have already followed the steps there and emailed my dxdiag.txt to Bandicam. That's the only other thing I can think of that is causing this Roblox issue.Please refer to the following page regarding the H264(AMD APP) codec.
https://www.bandicam.com/support/tips/amd-app/
thanks