CWD / Ply gem casement part

A handy person from Park City, UT says:

The attached photos are of an upper track on a casement window (approximately 30x48). The small plastic piece fits inside a track on the frame to keep the window attached to the upper frame while still allowing the window hinge to move. The plastic tabs are broken, allowing the window to come out of the track.

I am looking for information about the best solution and hope you can assist me in locating replacement parts.

Thank you for any time assistance you can offer!
User submitted photo of their window hardware.
Profile picture of Tom
Tom from SWISCO responded:
Thanks for posting. Look at our 36-013-10 hinge kit. I think this will allow you to repair these windows. I'm afraid that plastic slider is not available by itself.
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