"He who marches out of step hears another drum." ~ Ken Kesey
Have been using Multi Tex for almost a year now. Zero problems. Under exposure of any emulsion may case a multitude of problems. Too much moisture content prior to exposure is another no go. Your chemicals may be causing "lock-in" with this particular PP emulsion. In my experience PP emulsions don't like certain types of screen/press wash chemistry.
We have been using QTL for years and is virtually like QTX, but less expensive.Switched because the only difference we saw after testing was price.
Cant go wrong with SAATI PHU. We have been on it for more that a yer now and the stuff works great. Especially with discharge. No diazo and no hardener needed. Expose it correctly and let it have an hour in the sun and there has been no breakdown even after 5k pcs of discharge.
Looks freak, jvanick can you please post the test graphics?