You need to do as suggested by Don Fischer. That is cycle one round through every station to see what is happening, not just continue to pump out more bad ammo. Leave primer tube empty and powder measure empty.
There is no reason a beginner can not start on a Dillion RL550B because it can easily be used as a single stage or a turret press until you learn what each stage does and what the precess should look like on the case.The RL550B has no automatic indexing of the table. The case is moved manual to each station with the star wheel on the multi-station case holder.
I suspect the bullet diameter which we have yet to be told.
I suspect the sizing die or flaring powder funnel is wrong (been there done that with the powder funnel!). Whose die set is it? Has it been checked for markings to decide if it really is a 9mm Luger die set?
I do not see how excessive crimping could leave the cartridge with no neck tension with modern dies. They are made to have so much neck tension the bullet prints through the brass with a coke bottle effect. Very old dies use to allow the bullet to rotate and indeed the bullet might be loose in those cases and the crimp held the bullet in but that was dies made at least four decades ago.
Just to be clear the sizing die removes the primer and the primer is automatically seated at that first station with a reverse push of the handle. The second station sizes the throat to the correct size and adds the flare. This station may be the trouble if the powder funnel die is incorrect. What does the nose of the powder funnel die measure? It must be smaller than the bullet diameter. What does the bullet diameter measure?
There are many details missing from the post almost to the point where no real answer to this problem is possible.
LDBennett