When pasting into mathjax blocks, the block becomes un-rendered texts. Even removing the pasted parts doesn’t fix the problem. This is best demonstrated using a video clip.
This can be fixed by copying the problematic block into a plain text editor, say Textastic, and then copying it back into Anki. I’m suspecting the issue is related how copy & paste in iOS preserve text styling as rich texts.
That’s a common issue. Here’s a quote from Damien (Anki developer) from 2018:
Copying & pasting it will paste the text formatting, which will prevent the text from being rendered - typing it manually should work
There’s no easy way to avoid that issue, you will have to type it out yourself.
P.S. Love the category theory 
Thanks for the confirmation. But I think there’s a workaround for this as I’ve seen it implemented in OmniOutliner:
Add a custom “Paste Plain” button in the pop-up menu which removes styling info and pastes as plain texts.
That would be a nice feature to have in the future. In the mean time, maybe the remove formatting button, or switching to HTML mode first with ‘</ >’ could be used to work around the problem?
Thanks for the tips. Editing in html does seem to be a good workaround. But remove formatting doesn’t seem to do anything for this issue.
