Hi Evoleth, we are not able to reproduce this on our end, and are not seeing widespread reports of this. It leads us to suspect it might have to do with a specific combination of custom settings. In order for us to diagnose and fix, could you please...

• Share you game logs shortly after losing control of the left side of the screen. (here is how to easily share logs) 
• could you also share screenshots of your custom hud setup?
• could you also share screenshots of your Accessibility / Touch settings in the Options menu? 

For all of those things, you could email [email protected] directly with the screenshots / logs etc. 

Thank you and sorry for the inconvenience here!