Sliding glass door lock

A home owner from Florida says:
I am trying to find the parts needed to replace the lock on this type of door. The locking part does not fully latch with the plate and when it does it is easy to yank free. Thank you for your help
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Bob from SWISCO responded:

Thanks for posting. Was this the original mortise lock that came with the door? Was it working fine before this and has failed over time? Is the latch tongue loose, and does it turn when you activate it? If the mortise lock is damaged, it looks like our 82-226. Take a look and see what you think.

A landlord from CA says:
If the hook moves out and up freely, it sounds like the keeper needs adjustment.
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