1.12.1: "File can't be loaded!" does not close the XNVewMP

[postcd]

1.12.1 [10234] 64bit Linux (Ubuntu 24 based)
0.38.0 (git b43ab43)
Build for: neon/24.04 7.0.0-38-generic 4KB x86_64; glibc2.24/2.39 libc++240000; Clang24.0.0 (++20260810082117+1069de7c5ab7-1~exp1~20260810202127.1778); 01:36:54 Aug 11 2026.

When I open a file, which is a corrupt image file (i have tried .jpg), then it let me confirm "File can't be loaded!", yet still loads the black screen of XNView which can not do anything (like browsing to other file in a same directory or a full screen key does nothing). It does not even show a close button. I have to mouse right-click to trigger menu and click close.
IMO it should instead just quit after confirming "File can't be loaded!".

Btw. the app spams the syslog and mere "xnview --version" command returns hundreds of lines spam.

[xnview]

If you enable 'Settings>Tabs>Closing last tab exits'?

[postcd]

If you enable 'Settings>Tabs>Closing last tab exits'?

Settings > Interface > Tabs > "Closing last tab exists application" was already enabled...
When i disable it, it is even worse - after mouse right clicking and selecting to Close, it shows XnView window with empty tab open.

[user0]

i can reproduce in win11

• default settings + startup changed to:
  - Viewer-Fullscreen - error msg appears, navigation does not work
  - Browser-Fullscreen - error msg does not appear, navigation works

• default settings
  when file is opened from Browser - instead of new tab in current instance,
  it opens in new instance (with error and <Blank> tab when msg is closed), similar to this issue:
  1.11.2 - browser - unscanned files open in new instance