Cleaning is necessary at times. And this often results in the need for disassembly/reassembly because liquid can get between the lenses.
This looks like a misalignment/collimation issue and it will produce a soft image with a lot of color. Seen it before. Not sure how the retainer ring is on this one, but when you take it apart again, place the innermost objective in and make sure it seats properly on whatever the inner cell support ring is. Then slip in the outer lens, turn it to vertical facing up and carefully tap the sides of the tube to get it to fall in place properly. With some tapping around the sides of the OTA it should self-center on the spacers (unless they are askew and not uniformly positioned...had that with some cheap scopes.) Then gently tighten the ring down and do some tapping as it starts to make contact. Tighten down some more until slightly firm so you know it has fully seated, then back off a little until just loose, then tap again. Then gently retighten so that it is just holding the objective with minor pressure.
I don't want rattle, some swear by it, I don't, I learned to swear at it. I used to do the "leave it loose so that it rattles" routine, but that was consistently giving me coma/collimation problems, so now I tighten slightly more at the end until there is no rattle. If you see pinch during the star test, back off a little on the tightening. The problem with rattle is the outer lens can move about, producing collimation/wedge/tilt errors in use. No thanks, had enough of that.