Hello,
I have got two machines : one on which the tab session works OK, and one that saves empty tabs.
The first one runs on Windows 11 25H2 [version 10.0.2, 6200.8039], it has 64 GB RAM.
The second one runs on Windows 10 22H2 [version 10.0.19045.6466], it has 8 GB RAM.
As I am administrator on a machine that has the same user names, I could create the tabs I wanted and save them to a tab session, and copy it to Windows 10.
Before having this idea I edited the file by hand in notepad, this is somewhat longer, especially since the Windows 10 does not seem to have any editor for XML files, so I had to redo the indentation by hand to understand what I had in front of my eyes.
If you have an idea of what would be useful to investigate ...
Normally they have roughly the same .Net versions, as I develop programs on one and transfer the executable directory to the other.
But maybe it deserves verification, although if the correct .Net platform was absent it could not have been unnoticed.
I imagine the components are deployed with the program.
By the way, I did not find the documentation of the tab sessions any more, except in this thread.
At least, Dertuek knows how to ask a question.
***
On Windows 11 this is the version of MultiCommander : Multi Commander (x64) v15.8 (build 3135)
You know, to get it here I had to make a screen copy and then use the character recognition of PowerToys, as it is displayed "read-only".
I shall have to make a follow-up, the connection with the Windows 10 machine is now closed.
Both machines are updated with UniGetUI.
Sorry I clicked on Notify instead of Modify.
It was a good idea to read again, I had transcripted the gloobi-boolga created by the character recognition, and Windows version is displayed so little, that for young people it is no problem, but ... they are not supposed to die as soon as they cannot read Microsof's screens, happily.