ASI294mc pro "Exposure Failed" all the time

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Hi I have a ASI 294MC pro that I'm using with an asi air plus and asiair app on a tablet. I can't complete a single session without the error interrupting. It's extremely frustrating. I've tried multiple usb cables and power supplies. I've also tried powering the camera separately. I'm currently using a 12v 12 amp power supply that registers as 12.1 volts in the asi air app. This should be total overkill but the error persists.

Corsair

Well I have that camera and an ASIAIR Plus.

I power the ASIAIR using ZWO power supply
https://astronomy-imaging-camera.com/product/acdc-adapter-12v-5a-for-cooled-cameras/

I power the camera via the power output of the ASIAIR.

I power my mount - HEQ5 Pro- with its own power supply. Do not power your mount via the ASIAIR.

I connect the camera to a usb 3.0 port on the ASIAIR Plus.

I connect the mount to a usb 2.0 port on the ASIAIR Plus.

That's all my equipment (I use a Celestron Aluminium Dew Shield for my C8 SCT).

Could you set up the same way with only mount and camera connected (no dew heaters etc) and test if you get the exposure failed on both usb 3.0 ports?

Also - set the focal length to 0, go into Preview Mode, take a single exposure, and tap plate solve. If it succeeds it'll set the focal length. Go with what it sets.

As well - check the Centre EXP Time in mount settings. Mine is set to 5s. You might need to increase this as well depending on your filters.