Off booking sheet error i can't reproduce

[mrbios]

Had a strange problem with the booking sheet recently whereby one particular room would have all its bookings shifted to the right one, so a teacher booking a class for period 3 got shifted to period 4, but the email she had received was for period 3. Going in and deleting any booking infront of it (such as the AM Registration or Period 1) would shift everything to the left again.

 

Any ideas what would have caused this issue? I went into the xml and removed anything that was in as a duplicate time period but i can't understand how this happened in the first place. (And quite a few irrate teachers that people were already using the room when they went to use it )

[nickbro]

Sounds like it could of been a CSS bug