NPE on purchase tab when switching characters

I'm not entirely certain this is a pcgen issue, it may be the java build. Do you have the log for pcgen? Can you explain what happened before the crash?

I have already attached the two logs of pcgen. It crashes during a game session when I use also the gm tools to menage the game.

The pcgen log

I've been able to reproduce the renderer issue.

When the character was switched (by closing the old character, or selecting another loaded character), the purchase tab was asking for info before it had been provided, resulting in the error. The switching of the character would then be aborted leaving all the tabs in an indeterminate state.