A family of Microsoft products that enable users to capture, organize, and reuse notes electronically.
Thanks, Bob. Apple Support was able to replicate the problem on their end today, so they are going to discuss it with their engineering team.
I just realized I didn't answer your question about how I can tell whether it is plain text or HTML. The HTML file is a little icon with the letters "html" on it, and underneath the icon it has a file name in the format "FILE_NNNN.html," where "NNNN" is a different number for each paste.
I wanted to ad that I am having same issue since the same update. I did go into Apple for help and they proved that it is a OneNote issue not being updated for Apples current releases.
If copy and paste from email or EverNote and then past into IOS message app they work just fine.
But use OneNote and get the little icon html. Once you get that the person receiving would have to double click the icon to open and then it’s contents are so small and frustrating to read.
Looking forward to an update from OneNote on this issue.
I am a heavy user of coping notes and pasting so I hope this gets resolved in a timely manner.