After downloading and building the sample gallery for x64/UWP, if I click around for a while, eventually the screen goes blank with just the message "invalid license" in the middle of it.

Kind of makes the sample gallery awkward to use.

You need to generate a trial license at

https://www.noesisengine.com/trial/

Ah, got it.

The way it only came up after a random amount of time made me think it was some kind of bug haha.

Thanks!

Yeah :)

The message should also display a link to same page I posted above.