Press "<" make screenshot
If I press the key "<" (on a German Keyboard!) I make a screenshot (also I pressing F2). I know, that other (german) Players have the same problem.
This problem has existed since the version 1.8 (Later Versions I don't make a screenshot on "<" key)
Thank you for your report.
However, your ticket has been resolved as a duplicate.
This issue has been linked to the original bugreport: MC-68399. You can find or add further information on that report.
Please search before reporting any bugs, as it's likely that one exists already.