XnView Software

Yes, that was it. Thank you.

I know I should've tested everything before posting, but here's some more:
- file memory is not cleared when OS is restarted
+ file memory is promptly cleared if XnMP is closed with [Ctrl + W] instead of [Esc] (requires the option to close when last tab is closed)

Addition: tabs left when exiting from fullscreen viewer mode pile up if more images are opened directly with "start with file > start fullscreen" option on – gotta switch to non-fullscreen view and close all tabs to make XnView start the next blank session from a designated folder in "no file" mode.

Greetings.

XnViewMP (v1.6.3) starts with a file from memory when launched from taskbar or directly from exe – that is, when it's actually started without any image file. Happens only if last session had ended in fullscreen viewer mode.

Similar thread, but with explanations gone astray: https ...