Im breaking my shutter issues into multi parts here, in this one, i seem to be missing the set screw on the part by the gear as in this image:
The part circled was naturally coming out.
I'd like to get the official part to fix this, however in the meantime i've added what seems to mostly fit but not flush, m4 set screw and the locking pin goes in a tad further:
Any suggestions here? From someone else, it appears that pin should slide all the way inside (i dont know if this could be related to the motor stalling/sticking issue i have (sep thread))
Turns out the set screw was just deep down in, somehow the pin was already loose. I've since adjusted things and made sure the cog was far enough out to avoid rubbing the track.