Ah ok sorry - this is a know issue - we already described it here:

https://realvirtual.io/documentation/current/platforms.html

Current working coupler.exe is available in the download area:

https://realvirtual.io/download/PLCSimAdvancedCoupler.exe

A meeting today afternoon between 14:00 and 16:00 is also possible

The problem is, that this is somehow a timing issue. We can't reproduce it on our computers and I thought that it is fixed because it was fixed in a Teams meeting with another customer. So only solution is that we closely work together, I will need to check your logs on your computer and maybe add additional debug infos.

Can we meet via teams and check the issue. Tomorrow will be best for me. If needed I will add aditional debugs in the exe in the meeting so that we see what is happening. Can you send me also the log of the .exe file for checking.

If you have no success I will need to check with you on your computer tomorrow.

I have doupts, that you really used the .exe which I have send.

Please check the project directory and delete all the .exe (one is under StreamingAssets).

Please turn debug mode in the PLCSIMAdvanced interface on and send me the console log.