No error this time.
Maybe a one off, or maybe it needs to have been a longer pause than 20 seconds between opening the game, OR...
...maybe it was showing me the HP of my Expansion team. they are all around the 15 mark with HP. Maybe the numbers I 'saw' were a little off. The mind does play tricks and all.
Anyway, the numbers were incorrect at first. Could be showing me current as max, or could have been expansion team's stats. Two things to check out. If it happens again, I'll pay more attention, maybe take screenshots too.
I don't usually bother with screenshots because itch won't allow me to upload them unless I am using a VPN and my VPN has been not working too well lately, but it is working at the moment.
I guess a glitch vanishing is more annoying than it being figured out as it hasn't actually vanished, it's just not visible.