Chain drops off outwards between plastic guard and last cog on crankset. This effect i mostly managed to remove by moving front derailleurs inside (not happened since). But looks like the core issue is not solved. Sometimes under applied torque chain getting of the cog and just slips few teeth with cracking noise. It's not happening on the stand. I drove not more than few hundreds kilometers.
I cannot move front derailleur even more, as frame will start rubbing the chain.
Drivetrain: Shimano Claris 3x8. Shimano chain CN-HG71 7/8 with KMC masterlink. Chain is new and waxed, front and rear derailleurs are new and installed by me. Wiring is also new.
Crankset is a bit older than other components but does not look obviously bent. However I do not know how crakset behaves when I'm applying the torque.
How I can diagnose core issue ?