Low hero health.

Hello! After traveling from Sorpigal to Dust and back, I noticed that the characters' health levels decreased. For example: it was 38 health, and now it's 9. If I rest, it remains at 9, and if I heal in a Temple, it returns to the previous value, but it's displayed like this: 38\9.
It's impossible to play. Please advise on how to fix this.