No power after jumping another car…

I’m the category of good deeds unrewarded… I agreed to use my 2013 Prius V to jump start to another vehicle, a Subaru. It didn’t work on the first try, and after that I can’t get my car to start… the power indicator light is green at first and then goes to orange as soon as I put the transmission in drive or reverse. The Prius 12v battery is charged up and we tried jumping the Prius from a third car, with no effect, but we were able up to jump the Subaru, so the assumption is that there’s a blown fuse in the Prius.

Is that a reasonable assumption? What else could be the issue. The hybrid battery was working fine until then but is there a possibility that it has been damaged? I’d appreciate any suggestions for tests I should run or anything to get the car running again.