Welcome to the forum!
Yes, I have the same experience on 0.92.2. However, I notice that you're drawing at a very small scale - I might even say tiny. And I do seem to recall that we have seen issues with some LPEs at very small scales. Your page size is 21.something x 13.something. Units are pixels, and scale is set properly.
I'll see if I can find a bug report.
Edit
I can't find a bug report, but I seem to recall hearing about an issue with very small objects. I would probably report it, and just include a comment that it might already be reported, but you can't find.
If you aren't comfortable getting involved with a bug report, let us know so we can report it
Or if you don't necessarily need that very small size, you could scale larger, and possibly avoid the problem. I'll try....
Yikes! I have the same problem at a larger size. I just moved the decimal point over one place (so instead of 21.8 width, it's 218.something) (and same for height). But it's a very similar problem when adding powerstroke!
Oh, I see what the problem is. It's a closed path.
For some reason, these LPEs don't work very well on closed paths. And which yes, I can see how this really limits its use! Actually I should say that I've seen this with powerstroke (not necessarily all LPEs). I'm not sure where developers are with this. I could ask....I am curious. First, let me see if there is a reported bug about it....
