All of a sudden, my strobes began working again. Maybe they knew I had ordered replacement lights and decided to cooperate for me. Tried my broken external hard drive, keeping my fingers crossed, but it remains broken. At least I have reliable outdoor lights again. I'll take that as a win today.

Nikon Z8,  135mm,  ISO 160, f/1.8, 1/4000 sec. off camera strobe set at 1/8 power