@wmann thanks fantastic report. I'm going through some testing with your files, did you recently switched from the old UI to the new one? This means that you were not in -beta before you started having issues. Can your repro it consistently (like it happens once a day to you or something like this)? Also if you clear your shader cache folder C:\Program Files (x86)\Steam\steamapps\common\rFactor 2\UserData\Log\Shaders does the problem disappear? And do you have any custom HUD element active ?