Almost done with remodel and Spa has zero water flow

So our old spa had 4 returns and a very thin wall between the pool and spa. We had that wall removed and two more returns add then wall rebuilt. The plumbing at the pump for the spa was never touched and worked all the way up to the day the pool was drained. However now when I switch it into spa mode the pump stops running...not shuts off but like its hydro locked.

I have confirmed all the valves are correct. In fact I have also confirmed the drains in the spa are not the issue as for I can...

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