Stefan,
No probs. I think should challenge everything! QM & SR incompatibilities are fundamental. QM contradicts the central Principle of Relativity and needs 'absolute' time, and non-locality, both anathema to SR. Many essays here note the issues, including I recall Beichler, Yousef, Kraklaue, Roychoudhuri etc. Penrose called them 'twin pillars of science', which can never meet. I discussed in detail in 3 finalist essays from '2020 Vision' in 2010 (2011 contest).
But more helpful may be a coherent solution appearing when the 'jigsaw puzzle' seemed to fall into place, but needing slightly new views of both. Lets say an electron re-emits absorbed light at the only speed it knows, 'c' in it's own local 'centre of mass' rest frame. Now consider Maxwell near/far field Transition Zone (TZ) as the surface charge free electrons of ALL matter. Light then changes speed to the LOCAL c on arrival (not quite instantly in diffuse plasma & gas). Brains into Mode 2 please! Then if you and a pal in space wait for some light, you head towards it and he heads AWAY from it, when you do so it has no effect on the light, apart from the different Doppler shifts as it changes speed by different amounts on arrival, so does c/n through BOTH your lenses.
That 'discrete field' model (DFM) meets Einsteins conceptual description in 1953 and is very simple once embedded. It also happens to be exactly what resolves all the wierdness in QM! Bob and Alice can rotate that fine structure TZ field direction to change and even REVERSE the 'spin states' ('re-quantized wavefunction' if you like). QMs predictions emerge with so called 'non-locality' effects produced entirely classically. Uncertainty doesn't disappear but reduces in fractals, so we have complete causality but NOT complete determinism!
(You may need to take that in 3 times a day for a week to stop your embedded pattern's rejecting it). Please do challenge any of it (but also read the previous essays to save me rewriting them here!)
Thanks for the interest.
Peter