I'm using the version set up through Package Control for Sublime Text 3, Stable Channel, Build 3021. The package file is timestamped Feb 26, and the contents are identical to the version I pulled from github directly. The only packages I'm running are FFN, Package Control, and sublemacspro. I tried removing sublemacspro, and the behavior is the same. Maybe it's the new build of Sublime?
If I click another tab, then click back to the newly opened file, the cursor appears and I can type in it, as if I had clicked on the first character.