Perspective URL Query navigation/update behaviour?

It’s possible I’m executing this wrong but unsure

I have a page where when I pass a urlParams page parameter so that a certain view TabContainer currentIndex is updated and a certain tab is selected (allows me to link to a specific tab)
ie:
…/data/perspective/client/TaylorFactoryView/El-Cajon?tab=1

If I navigate a link to the address, the ‘tab’ parameter isn’t respected. If I refresh the page, nothing. If I past the address in the navigation bar, nothing (this is chrome/edge and I’ve tried IE as well)

if I change the tab value, then it works, and changing back works fine too. ie:
…data/perspective/client/TaylorFactoryView/El-Cajon?tab=2

then back to:
…/data/perspective/client/TaylorFactoryView/El-Cajon?tab=1

Which is ...not great for links. Any insight? Thanks!

I’m missing something. Can you elaborate?
How is this:

Any different than this (other than the outcome)?

What exactly are you trying to do again? And what is not working with your current setup? Add a screenshot or two?