how to fix nan scale values?

Dafa

I'm using the latest version of Daz and I had just stumbled upon a scary error. Just now, I had IK enabled on the hands and I had done a recursive node add key command on the hands, and then the hands disappeared. I peeked at the properties and I see all scale values are at nan%. I tried to change it to 100% but it wouldn't let me. 

I tried to remove some keys, it didn't let me remove keys. I tried copying a working key and pasting it, didn't work. Do y'all have any suggestions on what I can do?

Dafa

Nevermind. I found out that restarting the app actually fixes the issue... who would've thought that the gold old "have you tried restarting..." would've worked in this scenario.