Android autofill not working on Pixel 8 and Microsoft Swiftkey keyboard

I am having similar problems with my Pixel 8 and Microsoft Swiftkey keyboard.

The 1password bar with relevant sign ins only appears intermittenly.

I often need to load 1password separately and copy and paste user id and password information.

Phone was recently updated with the June Google drop, including Android 16, I believe.

However, this problem has been occurring for several weeks