Catalyzer causing crashes -- 4.11.0.383

Karibou

I've got an admittedly complex scene with several dForce items (including strand hair on a figure) and the catalyzer version of Big Cat 2 (with the Lion's mane.)  I can work with the scene fine, but after I save and close DS, I cannot open the file. It crashes immediately, even with the Iray preview off. This about gave me cariac arrest the first time it happened -- I'd been fiddling with the scene for the better part of 14 hours and suddenly could not open it! Fortunately, I was able to turn off the Catalyzer plugin, reopen DS, and then the file opened fine.  I deleted the catalyzer groups from my Lion, saved again, turned on Catalyzer, and was able to open the scene without incident, thank goodness. My workaround has been to save the scene without the catalyzer groups and then (every time I open it) add them in before rendering. This is a pain in the rear, but is working.

My PC is pretty top-notch -- i7-8700 hex core with 32GB RAM and a pair of 1080-ti GPUs. HWiNFO64 is not showing an overload on the CPU or GPU memory, nor is the load on my CPU cores unusual. The crash also happens if I have the catalyzer plugin on and I try to delete the catalyzer hair groups from the scene.

Is this a known issue?  Should I file a ticket?