you have to check all your feature classes (also in a dataset) with sdelayer -o describe -l featureclass,shape -i 5151 -u user.
if the I/O is not NORMAL ( in my case LOAD), you have to do sdelayer -o normal_io -l featureclass,shape -i 5151 -u user.
farewell
Toni Rosin
Landkreis Teltow-Fläming