Steps to reproduce
Select a word underlined red
Pop-up window with spelling suggestions etc
Pop-up window appears blank, but responds when clicked with a correction or deletion of word.
Which operating system are you using?
Android 10, also same result Android 7
Which browser are you using?
If you’re using a desktop or mobile app, what’s the version number of Dynalist?
Are you using any third-party scripts for Dynalist, e.g. PowerPack?
Same result with different virtual keyboards: Gboard, AOSP, Hacker’s keyboard
I reckon the spellchecker suggestions do in fact load into the pop-up window but that the text is rendered transparent.