Just updated from 2018.06 to 2018.09.0.29. Love what has happened with the Step Sequencer. Fantastic. It's like a dream come true. Thank you very much :)
Unfortunately it crashed as soon as I touched a key on my MIDI keyboard (Alesis Photon X25).
Message was : A fatal error has ocurred. Module : ..\FaderPort.dll. Which is weird as I didn't have this controller connected at the moment. Issue was resolved by simply removing it as a control surface in settings, then adding it again. After that it can be unplugged without causing a crash, when not present while playing the MIDI keyboard.
[Edit] I'm having major problems with my OS (Win7x64) at the moment, an will probably need to do a reinstall. Can barely access my own files anymore because of mess with lack of permissions. Can no longer change the settings for my audio driver. Guess that mostly explains my problems.