Can't take screenshot due to security policy.

[Cimlah]

Everytime I try to take a screenshot a sign pops up with sentence as in title of this thread. It pops up in any app, even on home screen. I could take screenshots normally some time ago, but now I just can't.
I'm using Galaxy J5 2017 (SM-J530F) running Prometheus S9+ Port V1.0

[Subbiee]

Well, custom ROMs are known to be buggy and glitchy like that. Try asking on xda developers. I did a Google search and nothing helpful turned up. Sorry.

[devenderagarwal]

i am facing same problem, it starting appearing suddenly. it is showing on every screen i try to take screen shot of.

[rijuzz]

Change screen resolution in display settings.. S9+ port rom right?