Have you verified that UIA mode is working at all on the 2nd server? And are you using the startup flag when launching to enable accessibility? --force-renderer-accessibility
I've found that UIA mode will automatically work on some machines on some browsers. I'm sure there's an explanation for this, but I don't know what it is. Best to explicitly enable accessibility by using the flag.
If you are already using that flag when launching, then the easiest way to identify what is different between the two is to open Application Modeller on the 2nd server, spy the same element again, and then compare the attributes between the 1st and 2nd servers. If you don't have access to the 2nd server to open in DEBUG mode, then that'll be more difficult to troubleshoot.
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Dave Morris
Cano Ai
Atlanta, GA
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Dave Morris, 3Ci at Southern Company