casement winder 'skips teeth" and no longer pulls window all the way cloased

A home owner from Columbia md says:
Casement windows from 'Great Lakes' no longer in business. Has an additional bar which pulls the hinged corner about 4 inchs when opening.

a part number on the bottom '022800 23:40' and on one of the arms there is an 'up arrow' and the word in caps 'TRUTH'

looks a lot like 'Encore dual arm' , dimensions look right too.
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Tom from SWISCO responded:

It definitely sounds like you need a new operator. We can help, but in order to make a recommendation I will need you to disconnect the long, straight arm from the track and show me the guide at the end of it. We carry a few different styles and that will help me narrow it down. Yours is currently too obscured by the track to make out.

A home owner from Columbia md says:
see guide photos attached
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Tom from SWISCO responded:

Thank you! This operator is a match for our 39-253RB . We also sell the 39-253LB for the opposite side, as well as the 39-452 and 39-451 covers/handles, which are sold separately. Finally, we sell the slider itself, which is our 39-529 , but yours appears to be in good condition and you can likely reuse it.

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