>>15703698special relativity describes the relativity of motion, is based on reference frame and physical position, predicting time dialation between observers at different velocities going different speeds.
Wave function collapse descibes the effect an observer has on the outcome of a probabalistic space.
Relativity requires we measure one thing in refence to another thing, this requires an observer, and therefore must be proceeded by or occur simultaneous to a collapse event brought on by an observer *simply having the intention to observe*
This suggests that they are not totally incompatible, what we lack is the formal explaination of how the unpredictable quantum cloud of probable states we 'exist as' snaps to their subatomic reference frame in a way that doesn't diagree with the reference frames that proceeds or follows it. *But only when intention to observe enters the equation*
The answer to this question is worth $1M + rip modern science, new paradigm.
TLDR: It doesn't contradict because both require observers, perhaps.