Come across this really irritating bug in Ps CS6 x64 ... I can't set the size of a text layer - it jumps back to the above size. I have quit and reloaded PS CS6 but the same happens.
It was working OK earlier, but this has started happening - has anyone else come across this?
On Win 7x64 with latest PS CS6 update.
Try resetting your preferences file. Restart Photoshop and imediately hold down Shift Ctrl Alt delete (Shift Cmd Opt delete)
Or it could be a corrupt font. Have you installed any new fonts recently?
It started doing it partway through an editing session and the font is Adobe Source Sans Pro. Will try after a reboot.
OK, it might be that image that has got itself into a tizzy then. I've had this happen, and pasted the layers into a new image which fixed it.