Nomad Crashing

I'm suddenly having a problem with Nomad crashing constantly on my computer.  I'm using a showfile generated on an ION running EOS v2.9, and have tried both V2.9 and 3.1 with no success on my machine.  I'm using a 2018 Intel Macbook Pro.  The problem first surfaced when I was running Big Sur.  I installed the latest OS just in case, but that didn't help either.  I've never had trouble running EOS before, but now if I select more than a few lights I get the spinning disk and then crash.  I'm in tech currently, so it's a particularly terrible time for this to happen.  Ueli suggested including logs.  I'm not sure where those are but I'm happy to take a look.  Any help would be greatly appreciated!