I don't know if this is related to the same problem, but after the last update from time to time I can't see some of the details about the fighting gladiators - stable, race, etc. Here's how it looks:
Attachment 28
Also, the My Fights section in the Arena lacks the date/hour part in the [] brackets after I view a fight which looks like the above. Going to some other section - say the Blacksmith - and returning to the Arena restores the things to normal but it happens again after a few fights are viewed.