What I did:
Wrote a forum post
What happened:
Reduced keyboard on iPad to look at something
Last text written since auto save disappeared
What I expected:
Text not to disappear
Things that might be helpful to know (Agenda version, OS and model, etc):
Community board
iPad - iOS 11
This has happened a couple of times in the app as well
Iām afraid this sounds like a bug in Discourse, the forum software we use. If you find a way to reproduce we could report it to them.
Developers, always wanting the moon on a stick!
Sorry, it was totally unexpected and it took me a few minutes to realise what had happened by which time my 
brain forgot what I had done last.
blink where am I?