I've PM'd the page source from a few plays over - but I took the time to dig through a bunch more, and it's not letting me send him more PMs, because apparently there's a 3 limit on unreads.
Anyways, here's what I've found ...
Breath is allowing a floor of 5, not 10 on every single one of the plays where this is popping up (and with peewee energy levels, there's a TON of them).
1) When a player starts a play at 10 or above - the display works correctly in flash + non-flash.
2) When a player drops from 10+ to the 5-9 range during a play, the display will LOCK on 10 in flash + non-flash, but the play source will indicate a progression from say 12 - 11 - 10 - 9 - 8, etc. ...
When a player starts a play below 10:
Flash - Will display 100 breath and it WILL not move, regardless of how long the play takes. Morale will show accurately.
Non-Flash - Will display empty bars, and ? / ? for breath and morale when moused over. The page source will indicate the actual numbers from 9-5 in play_var and once at 5, the player will not drop further, regardless of how long the play takes ...
So if the intended floor for breath is 10, then the issue seems to be coming from the sim engine itself. If the intended floor was changed to 5, it seems like the replay engine didn't get updated accordingly.