Collectible Card Game Headquarters

I'm running a snapshot build,

1.5.58-SNAPSHOT-32540

Whenever I cast Seal of the Guildpact, I get a dialogue box asking me to choose two colours. All five colours are listed, but I can't actually click any of them. The "OK" box on the bottom is greyed out and unclickable. There seems to be no way out of that dialogue box other than a hard close of the program from task manager.

Thanks, keep up the great work!

For that card, you need to ctrl-click on the second color.