Hi Matthew,
I've just ran through my battery of tests which was on the latest version voila 3.0.19.dev1+gde48918a5 (you can see this by running $ voila -v) ; I didn't see this issue pop up, but it might be some combination of groups / experiments that I didn't account for or something else silly. Can you make sure you are on the most recent version, and if that doesn't help, can you:
1) give the list of steps you took running majiq/voila (feel free to redact the actual names of files/experiments)
2) try to run voila using the switches $ --debug --web-server flask ; this should show an error in the terminal upon seeing that datatables error which would be more informative to me ; you can copy it here.
Thank you!
-San