It seems like there's an issue with how that SiteCat library handles subsequent calls with multiple servers, as I tried it in the AppMeasurement for JS tag and it works as expected. I'll continue looking into it for a permanent fix, but to answer your question:
Yes, there are mutiple individual templates per tag, they are identified by the UID on the right side of the tag list. You can see the templates themselves by going up to the top right of TiQ, clicking on your email and selecting "Manage Templates".
As a quick solution, you could go into the 2nd SiteCat template and around line 298 should be the start of the send function:
Beneath this line, you can add:
u.o.trackingServer = "otherEndpoint.net"; u.o.trackingServerSecure = "otherEndpoint.net";
This will force the 2nd template to always use the other endpoint.
Let me know if you have any other questions,
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