1Password opens in edit screen

The issue is caused by Secure Entry rather than Logi Options+.

I figured it out because I pressed the Lock button while using the Terminal with Secure Entry enabled. The computer didn't lock up as expected, but it did trigger the CMD-E shortcut and occasionally spelled out the letter q in the Terminal window. The computer was locked by clicking on the Touch ID button. When unlocking the computer and 1Password, 1Password starts in Edit mode.

Also, if you use the CMD-\ shortcut to unlock 1Password on a computer that's not locked, and the Terminal with Secure Entry is running in the background, 1Password always opens in edit mode.
As CMD-\ is a unique feature of 1Password, I am able to confirm that Secure Entry also modifies this shortcut, resulting in its opening in edit mode.

This issue doesn’t happen when I press the Lock button while using the Terminal without Secure Entry enabled. It locked the computer as expected. When unlocking the computer and 1Password, 1Password starts in the “regular” window.

Secure Entry somehow hijacks and modifies keyboard entries.

I'll report this to Logitech as well, but since Secure Entry is an Apple feature, I suspect it'll remain unsolved. It would be better if the apps affected by Secure Entry implemented a fix for their respective apps.

I'll also uninstall Logi Options+ and test again.

Meanwhile, I'll disable Secure Entry from the Terminal and iTerm.