didn't quite know how to put a topic on this, but I'd like to hear if anyone has come across this and tell me a missing procedure or something of the sort. It's IBM Cognos Express 10.1 in question.
In Architect I reordered dimensions in a cube A which is used as a source for a Target cube. Also updated the rules in the target cube and the feeders. Since nothing appeared in the target anymore I double checked, ran DeleteAllPersistentFeeders with TI (whether actually needed or not), restarted the services but still nothing. Only when I restored the original order of dimensions it's working again.
Why I'm not going into detail regarding the density of dimensions, how many there are etc. is that there's another cube B with exactly the same dimensions and order of dimensions as I tried to change the cube A to and yes, Cube B is ok as a source. I've tested rules for A and B in Target cube separately and also their sum DB(A.. + DB(B.. (don't pay attention to the syntax here

Therefore I'm thinking there's something I've missed when changing the order of dimensions, but which step could it be?