Issue with connected hardware to ipad

I have to admit, I was on the wrong track all the time. Forget everything I wrote. It was as it looks the simplest reason one can think of and should come in mind first. Though I doubt it somehow, it was a cable not being plugged in properly. Having a new iPad where the dock should not be compatible made me think of anything possible but not of the simplest. Anyway, all works to my likes now and maybe my thread is of some help for someone.

I think it has nothing to do with the state of charging of the batterry. If the battery is at say 80% and I connect any power supply, e.g. power adapter or 20Ah powerbank it happens. Now I think it is the usb adapter connected to the iPad. The Anker one is not compatible to the iPad pro 2021. I use the one I had since years. What I also could imagine is a weak power supply of the iPad. Anyway, before buying anything of all this, stronger power supply or adapter, I like to be sure it works. Thanks

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It's the usb adapter. Not compatible to iPad Pro 2021. If I work all the time I use it. If not, I switch to battery. I did some research for a compatible one but did not yet find one. Up to 2020 no problem, but 2021 none yet.

Conclusion. If I am at home I use the solution mentioned before. But my goal is to sit on a bench with a table doing some music at the edge of a forrest, with fountain for fresh water and fireplace. but without speakers and interface. All possible very close. IPad and hub powered by a powerbank. I need a jack for headphones and the adapter to the iPad. This is all possible with the hardware I have. All must fit in a small backpack whitch it does. I found lots of thunderbolt docks but they all need a power plug.

Of course If really everything was working it would be perfect, but buying, buying, buying not knowing if it will work I will not do. As long that I have a workaround I am happy. Absolutely perfect would be if I could connect my USB monitor to it, but not mirroring, expanding the screen. But I tried to connect it to the iPad just for fun and it worked perfect with mirroring.

I had a chat with the Focusrite support and what my 2i2 does is "normal". No solution, but a workaround. Set the Pad the never sleep, or disconnect it. This what I tried to avoid. I would recommend a screensaver when using never.

The edited link was a link to this picture.