Installed the latest beta (3.21.50) and now getting this "can't descent below current TOD" error:
Possible I'm just being ignorant of other features, but I usually modify these manually as the computed descent always seems to be too late.
The flight plan presets never seem to change this behavior so I've just gotten used to changing them manually; it often needs to be done anyway to meet STAR constraints - this example of CAMRN4 into KJFK being a good example. Needless to say, being unable to push the TOD back is an issue.