OS: Linux - 64bit - Ubuntu 16.04 LTS
After renaming a folder in the folder pane and navigating to any other folder and then back prevents the reload of the content (preview slides) of the renamed folder. This remains until XnView is restarted.
Effect: folder content is not shown any more.
To reproduce:
1. navigate to folder <test>
2. once the preview slides are loaded, rename the folder to <test bug>
3. navigate to folder <test2>
4. wait until the folder content is shown as preview slides
5. navigate back to folder <test bug>
Actual behaviour (bug): now the preview slides are still the one of the previous folder <test2> and the images of <test bug> are not reloaded. This was also the case for 0.86 ( I updated today from 0.86 to see if this was fixed)

Expected behaviour: load and preview content of the modified folder just like before renaming
Let me know if I can help in hunting this bug any further.
Cheers!
UPDATE 5.11.17: once a folder was renamed it is also not possible to rename it again until next restart