jelo wrote: How do you come to that conclusion?

The case here is a running LS 3.17.5+190604 with a closed corporate user base with IE11/Win8.1 . The code changed with the missing ICO validation was done way later.


Changing the session name from the default to a unique one seemed to have fixed the issue here.
That wouldn't help when the missing ICO validation where in place.

I guess it‘s because we also opened a support ticket and our developer provided some extra information

However, LS will be a bit more stable with this commit.

Thank you all!

FlowinBeatz wrote: I guess it‘s because we also opened a support ticket and our developer provided some extra information

We are beyond guessing. I trust your statement about running version "LS 3.17.5+190604". That information rules out certain bugs which were introduced later.
Feel free to post the extra information from your developer here.

True, the bug with the favicon was introduced in 3.17.10+190821.