OK, I think you have caught the bug. The SestoSenso firmware sometimes returns some 0-byte position value while it is fast moving. Attached are 2 log files, one with a 100 ms polling period, the other with a more reasonable 500 ms period.
Thanks a lot for your support, Jasem.

Thanks for the test. I believe I found the issue.. this is specific to GOTO presets. It wasn't setting the absolute position property status flag properly. Can you git pull and recompile again? Thanks!

Thank you Jasem and Dahu for the support!

I have downloaded the latest build and want to test it but now I have another problem: Ekos does not recognize my camera (DSLR) and my guider (ZWO ASI). I am sorry, but i am a relativliy beginner and i do not know what i am doing wrong. I added a logfile. Thank you!!

Jasem, I have git- pulled and recompiled, and the 0-byte warning messages have vanished, it seems you've got it. Just great.

Everything else about the focuser controls are OK?

Sorry, I do not know. I can not test it. It is connected, but i can not move the Sesto Senso. I also can not move the mount. Further i can not disconnect it and stop Ekos.

Edit:
Now there is no connection to the server. I can not reach the web manager.

I have bought a new sd card and write a new image on it and put that in my StellarMate.

Now can connect to my divices again. But i can not move the Sesto Senso or do any settings. Enclose please find my log. Do you have an idea what is wrong? Thank you very much!

There should be updates in the next few hours for INDI and KStars. Make sure everything is up to date.

Thank you very much! I will update and then report!

Hi everyone,

I updated and all my devices do connect. Thank you Jasem!

But there is still a Problem with the Setso Senso. I did a calibration with PrimaLuceLab-Software. Then connect it to Ekos. The absolute and outmost Position was 81625. Then i want to let it go 5000 steps inside. But it went more then 5000 steps. I have to stop it manually. Otherwise i think it would have go to 0 or passes that. I have added a log file. Let me know what i should do now. Thank you!

I can not get the Sesto senso driver to work any more. This is for version 3.1.0. After it is calibrated with the Sesto senso windows app I can connect to it and it registers the correct Absolute position, but if I tell it to Focus in 100 steps it will move in and not stop and keep trying to go, even after the focuser has reached the end of the draw tube. If I tell it to focus out it will also also focus <em>in</em> and not stop. Version 3.0.0 seems to work fine.

I tried Jasem's advice on disabling auto connect so the debug log will work but it will not let me enable Debugging. I tried replacing the Sesto Senso INDI driver with the 2.9.8 version but that will not work at all.