WTIU Firmware update 1.3.0 was released a few weeks ago:
https://www.mthtrains.com/news/930
---
Besides the TMCC connectivity update, it fixes these issues:
The first item I had seen and I just had to remember to turn the feature off if I
wanted it on. With 1.3.0, that is not necessary any more.
The second item broke my Remote Train Control (RTC) program. Previously the
LuCI firmware had a version number and the WTIU firmware had a different version
number. I think this caused some confusion. Now they are the same. In this case: v1.3.0-20250814-1255.
You can download the fixed up v5.0.1 of RTC from this link. The readme lists other changes from v5.0.0.
http://www.silogic.com/trains/RTC_Running.html#RTC_Download
Mark