I did contact ZWO and was told the ASCOM and ASIAIR control works fine, ( not exactly helpful to an Ekos user, right?)
I would encourage you to contact Zwo support, maybe they will help. The engineer did say they would look at the issue.
I am wondering if the log warning “ReferenceError: xi18n is not defined” is related to a lack of GPS data.
I don’t know what you mean by “Mount app” but if on a phone it would provide GPS data and possibly the reason it worked after using it.

I am throwing ideas at the wall right now but hopefully we will get somewhere.

The Astroberry.io docs mention setting up virtual-gps.

Hope this helps

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