List code missing Windows

[SteveShank]

I have a weird issue with disappearing list items code. Windows version. 2.6.10.

It seems to work and then, the - [ ] disappears, but still functions. I use the Rich Markdown v 0.8.3 plugin. Also, I might use * [ ] instead of - [ ] it is possible if it also works. I only use the markdown editor. No access to the wysiwyg editor.
Anyway, this is how windows looks.

The thing is, I can't fix it because it isn't showing what it is doing.

Here's how it looks on my phone:

I sync using joplin cloud windows, and android phone and android tablet.

Ideas?

[SteveShank]

As soon as I finished posting this, and returned to joplin, the markdown editor now shows this.

But I'm still missing the -
Is it a left margin in the css style sheet?
As I said, it is frequent but inconsistent and I haven't a clue what might trigger it. It could be making the Joplin window wide and then narrowing it again.

[CalebJohn]

Are you using any custom CSS in the userchrome.css file? It's possible that there is some hiding going on.

[SteveShank]

I've tried commenting out a 10pxl left padding. That might be it, but it is too soon to tell for sure.