Having a girder crashing problem with specific Keyboard Actions. Issue occurs in build 589 and 590.

I create a simple Keyboard Action for a <PAGE_UP> key. If I Press the Test button it crashes Girder. Same problem also occurs for PAGE_DOWN, ESCAPE, BACKSPACE and others I'm sure. Arrow keys, regular alphabetical characters work fine. I haven't tested every key. I've tried this on different PCs and 2 different builds with the same results. Let me know what other info you need.