No cursor on empty rows / lines in markdown editor

After playing around with disabling some of the many plugins I have installed and deleting a couple of them, this issue has gone away. Not sure which plugin or (more likely) combination of plugins was driving the issue, but if it appears again, I'll be more systematic (and write down all the testing) when trying to narrow down the issue to plugin or combination of plugins, and reopen the issue.

Edit: In case anyone has same issue and finds this thread, I narrowed it down to conflict between plugins: Persistent text folding in editor - #67 by jb261