Odd behavior normal for low battery or defective?

Brand new OP-1, ver. 00235

The issue I’m having is that all knobs freeze up and I can’t select sounds, adjust parameters or do anything with them unless I reboot the device. It happened three times over the course of 45 minutes. I’m at work now and I’m not going to turn it back on until it’s fully charged, but I’m hoping this behavior is from the battery being nearly dead the entire time I was using it.

I read the manual and it says to charge it immediately but it doesn’t say I can’t use it while I’m charging it

Try factory reset or (if that doesn’t work) reinstalling the firmware.