JFrame invisible refuse to paint windows content tho everything else runs?

[Addez]

Wtf just happend?
I got tons of code I can NOT publish an example here. No possible way.
I only need to know, what are the common reasons that JFrames fucks up when painting it's contents?

It isnt hoged up as I can minimize and maximize, but it simply doesnt repaint anymore. Tho the repaint method is called over a 30 times per second.

It works when I add the jpanel with the game graphics in the begging.
If I remove the menu then add the game graphics panel, then it doesnt work.

[Fubarable]

Can't help without seeing code, but can't help if you have tons of code. You have your work cut out for you: Cut out code a bit at a time til the error goes away and that might be your offending code. Use a debugger or println statements to watch the state of your program as it rungs.

[Addez]

So I did as Iv done before, Replace it using a JCardLayout JPanel. Sucks that I will never figure out whats causing this..