Casement window arm came off the track
Well, your operator looks somewhat like our 39-393. Other than the fact the arms disconnected, it appears to be in good condition.
I mention this operator because it's designed to connect to a bracket like our 39-340, which just so happens to resemble the bracket shown in your last picture. Yours seems to be missing the little black piece that holds the pegs, which is what the 39-393 operator physically attaches to. That's probably the culprit.
I think you could get away with just getting a new 39-340 and installing it in that same spot. let me know what you think.
You're welcome!
Hello!
The detach clips can feel a little loose. I believe that is just the nature of the beast, unfortunately. You can try to tweak the clip a little to tighten it, but be careful not to weaken or damage it.