The new launcher unfortunately leaves folders ns*.tmp with registry.dll
when it completely closes.
This happens with the 3.5.3.1, which I've downloaded from
https://portableapps.com/apps/office/libreoffice_portable
just today.
Hope this helps to find the source of the problem:
1) This behavior is also present in LibreOfficePortable.exe launcher fix 2
2) This doesn't exist in the patched LibreOfficePortable.exe launcher
from May 11, 2012 -
https://portableapps.com/downloads/app_extras/libreoffice/no_vcr_check/L...
Another question - is it possible to turn off the splash screen with progress bar?