pdflatex does not work on win after todays update but does on linux

[Andreas Hirsch]

Hi,

Siep Kroonenberg schrieb am 13.06.2021 um 11:10:
> On Sun, Jun 13, 2021 at 10:59:30AM +0200, Andreas Hirsch wrote:

>> But we should keep in mind this line from
>> http://www.tug.org/texlive/windows.html#tlaunch
>>
>> 'TeX Live is designed for shared use: you can install TeX Live on a network
>> for use on client workstations. All it takes is adding TeX Live to the
>> searchpath.'
>>
>> Something must have changed on windows (or samba?)
> 
> The ISO version still works over samba.

That leads back to my initial assumption so I try a conclusion:

win32/pdftex.exe has not changed (dated 2021-02-25)
win32/pdftex.dll has not changed (dated 2021-04-30)
my enviroment (Win10 client, Samba-network-share) has not changed

LaTeX has changed to 2021-06-01

TeXLive2021 runs on Win10 from a Samba-network-share if it is before the 
LaTeX-Update (as reported by Siep see above) AND as it was true until my 
TeXLive was updatet

It stops working for this enviroment if LaTeX 2021-06-01 ist present

On the other hand LaTeX 2021-06-01 dont cause problems on local systems

So the combination of

Win10 + [(pdftex.dll + LaTeX 2021-06-01) + read from Samba-share]

seems the culprit.

But how to look further? Does the 'file-read-from-smabashare' turns 
pdftex.dll+LaTeX 2021-06-01 in thar state to crash?

Andreas