Still, the PC is bugged.
Even between Elektrons machines which were supposed to behave the same way.
It works perfectly fine as long as you don’t use track length and so on.
Here is their answer when I sent a ticket regarding this problem 6 months ago:
There is a known bug that can cause patterns to change too late when the receiving device is in PER TRACK scale mode and the master length is higher than 16. This issue has the highest priority to be fixed, but it is unfortunately complex and time consuming. We hope that a fix can be ready soon. I’m very sorry for the inconvenience.
To be honest, as nice as the customer service is, I believe they also just tell you what you want to hear. Truth is, I asked 6 months ago and nothing happened, and I’m sure the request was already made years back …