Unresponsive Back Arrow on Touch Screen

On my touch screen (A350) the top left part doesn’t respond to touch any more. That means I cannot back on any screen that shows the <. I’ve sent a message to support.

Mine either, did you get a fix?

Yes, Snapmaker provided me with a free replacement.

Was it still under warranty?

I don’t think they asked. But probably it was within 2 years from receiving it.