Early on in all those colored RSD pressings I noticed all kinds of seemingly-QC-related issues.
I’m a decided member of the camp that holds certain tracks/albums on vinyl as certain old pressings still cannot be bested (for my preferences) by the commercially available digital alternatives, but for the life of me I can’t see why anything more recent that was recorded/(re)mastered digitally is worth having as new pressings other than the tactile virtues in sentimentality (or, depending on one’s age, novelty) for spinning discs.
It also makes sense that a new little-known artist would have problematic vinyl (QC-wise) from a competitive/logistics standpoint: they’re likely at the back of the line against big labels for being able to get albums cut on the medium.
If the OP is a query for my own experience in weirdest record defect, it would have to be a Third Man Records album that was pressed in 50/50 yellow/black translucent vinyl. There is a strongly audible click at the yellow-meets-black boundary in every last groove. Both sides. On every copy I heard (only 4, but if that’s not a pattern…). Meaning “CLICK” is what you hear ~66 times every minute that you listen to that record.
New records and the purported technological improvements… yeah.