For bug reports, please post them on GitHub - Issues · laurent22/joplin · GitHub
If you are not sure if it's a bug or not, PLEASE POST ON GITHUB ANYWAY.
If you post a bug report here, we cannot track it and there's a chance it won't be looked at and fixed.
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The version you are using. LATEST VERSION is not a version number!
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Do you know which editor you're using (markdown or WYSIWYG)? There is a switch in the top right corner, with an M icon and a pencil/paper icon, which one is darkened? Here's an example of the markdown editor being selected
I've just noticed that in your previous reply the todos should be rendered differently, which gives me a hint about where the issue is. But I still don't can't figure out exactly why it doesn't work for you.
P.S. My apologies for taking so long to follow-up, I do want to help you solve this, but life got in the way for a bit.