When approaching Duna from the dark side it was blue (fog bug)
dv calculation wrong : pushing prograde in orbit but orbital velocity increasing 10x slower than dv decreasing
injustified spin on a perfectly symmetrical ship while in interplanetary transfer (stopped when entered a planet SOI)
chutes randomly not deploying
landing gear spring and rigidity tuning not doing anything
simple nuclear engine is completely inefficient whereas quadruple is fine
Electric charge not updating (always max with no generator no panel and motors off but spinning with réaction wheels)
maneuver messy and unreliable
Kraken (a lot of it)
generally far less beautiful than before patch 2 (a lot of aliasing)