Not sure if it's the ATVO update or the latest iRacing one but when I click to deploy the timing screen it just shows up black..

That's weird... I did change something in the timing screen but it should not break like that, and it doesn't for me.

I have already reverted that change (due to another issue) but not released yet. I will do that today in v1.29.4. Please let me know if that fixes your issue too.

I find that if I start the timing screen before I boot up iRacing it's fine but if I wait until after it's just a big black square..