Don't know when this started but I have had some problems the last week, that's why I post it here.
I'm on the Mac, using PHPStorm 2018.1.6 and GitKraken to manage a couple of projects. I have now found out that sometimes PHPStorm no longer picks up the correct branch automatically, instead I have to close the project and re-open. (By picking up I mean displaying the correct git branch name in the lower right corner of the window). GitKraken checks out the correct branch, so does "git status" in the terminal.
The information under "Version Control / Local Changes" is also wrong in these cases leading to confusion.
Most of the times, the update works but once a day or so it doesn't, requiring a restart of the IDE.