"Refresh directory" not working

[slarti76]

I very often have the problem that "Refresh" is not working. What I'm doing, for example, is selecting files and then opening them with Hugin, creating a panorama. Once that's finished, I switch back to XnViewMP, but the newly created panorama is not there. Ok, that's fine, but clicking "Refresh" doesn't show it either. I have to select another directory and then go back to see the new picture.
Also, weirdly, after I switched back to that directory, open the picture before the new one in view mode, and then go to next picture with mouse wheel or cursor down, the new picture is omitted. Only once I opened the new picture directly with double-click, it will then by part of the rotation for the future. (That doesn't happen all the time, though)

I saw an older thread with a similar problem (viewtopic.php?f=62&t=40293&p=162191&hil ... ry#p162191), but that's 2yrs ago and it sounded like it's supposed to be fixed...

I'm using 1.4.3-x64.

[xnview]

which 'filter by' do you use?

[slarti76]

which 'filter by' do you use?

I use "Images", but now I tried it with "All", and voilá, new image is schown even without clicking Refresh.
My guess is that Hugin starts writing a file which is not a valid JPG (yet), XnView sees the new file but discards it for not being an image. Is that possible?
If that's so, I understand if the image doesn't show up immediately - but "Refresh" should always do exactly that: Refresh all, ignoring cases where a file was disregarded before for whatever reasons. Otherwise, what's the point of refresh, don't you agree?

[xnview]

yes, for big written file, it can happen

[slarti76]

yes, for big written file, it can happen

Ok, but do you agree that "Refresh" should really unconditionally refresh the directory?

[xnview]

'refresh' check for new files. In your case, the file is already here but as a 'unknown file'

[slarti76]

'refresh' check for new files. In your case, the file is already here but as a 'unknown file'

Excuse me if I'm being annoying here, but that is highly unintuitive. XnViewMP should at least check whether the filesize of an already-read file has changed, in which case a reread to determine type is warranted. Why do I need to change directories to get a really up-to-date view of the folder?
Alternatively, the tooltip should be changed to "Search for new files" so the user knows that they shouldn't expect a full refresh. (I'm obviously not the only one expecting that behaviour, see the other thread.)

[xnview]

Thanks to your detailed description I can reproduce the problem.

[xnview]

This problem is supposed to be fixed in XnView MP 1.4.4. Please check and confirm the bug fix here.