Audio Mixer Won't Open - DaVinci Resolve for iPad v. 19.1.2

I'm running DaVinci Resolve for iPad v. 19.1.2 on two iPads -- a 2022 iPad Pro (M2 processor) 12.9" and a 2024 iPad mini (A17 Pro processor), both with fully up-to-date OS's.

DaVinci Resolve runs fine on both devices, except for one thing: the Audio Mixer widget will not open in Fairlight. I've repeatedly pressed on the "Mixer" button at the top of the Fairlight panel and I can see a little movement in the lower right hand corner of the panel that looks like the edge of the Audio Mixer widget, but I can't get it to open fully. At one point, the widget opened a little further and I could see the letters "Mix...," which I assumed was the title on the widget -- but I can't even get the widget to open that far any more.

Am I missing something, or is this a bug? Has anyone had luck opening the Audio Mixer widget on an iPad?

Thanks.

Same thing is happening to me. Is there a workaround for this? Is it a bug? Will it be fixed. I paid $100.