I think the bug is also related to assigning crew members to your ship that have the shield perk themselves, because I’ve had it trigger for me twice and Vasco was a crew member both times.
Okay, I might have found a fix but I didn’t think to reload any saves to verify it 100%
I took my bugged ship out and boarded a random low leveled enemy ship, cleared the hostiles on board, and undocked while in the new ship. I then boarded my original ship again and when I undocked again my shields were displaying the stats they were supposed to.
I think adding another ship to your collection might correct the glitch, so buying or finding a free one could also help. Or I got lucky and it randomly fixed itself, hard to say for sure.
Had the same issue the other night. After several attempts to load my autosave and a restart of my Deck, I finally fixed it by loading a much older save first then loading the more recent save from there.
In case it helps anyone figure out a pattern to the issue, my bugged save was on a space station and the old backup save was on my ship in orbit over some planet.