Im having the same issue. I downloaded all the different hotfixes and looked in the code with the changes. 5.34 works perfectly though. I wanted to try out 5.4 for the background function. Tried deleting the config before every time to restart 5.4 too

AMD 7950 GPU
AMD 8350 CPU
Windows 8

Also tried it in vmware(not a fan since it takes 4 seconds longer to search for a base every time)