Screenshot appears with blue light filter even if this mode is turned off.

Description

As soon as I start the mode to capture a screenshot, my screen turns deeply red like in a blue light filter ("night mode") even if I turned my night mode off.
I tried all different modes in "Capture" -> "Window Capture Mode" and to reinstall Greenshot, but none of it helped. I have used Greenshot for quite a while and I never had that kind of problem before.
Could you please help me to fix that problem?
Attached you can find a screenshot with Greenshot of a normal white page shifted to red.

Environment

None

Status

Assignee

Unassigned

Reporter

Verena Pichler

Components

None

Affects versions

None

Labels

Priority

Major