为什么VS2015在SourceTree不显示时显示未决更改？

Question

I've just started working on a new project where we use VS2015 with TFS and Git for our repositories. Several times now Visual Studio has shown me a pletora of files checked out with pending changes, while most of these files don't have any changes.

I thought about line endings at first, but then I noticed that SourceTree only showed the files that actually did have changes. Running git -diff also doesn't display these unchanged files, only Visual Studio does.

Something else I noticed after my last commit (done in SourceTree), the files that I committed where still displayed as having pending changes in Visual Studio. After restarting VS the files are still on the pending changes list.

One colleage has the same issue, while three others have never experienced this. All four of them have been working on this project for much longer than me.

I've spend a few hours googling for answers and found many cases that seem similar at first but none have a working solution for me.

Does anyone have an idea of what may be causing this issue for me and what I might do to prevent it?

Any help would be greatly appreciated.

EDIT: added some specs
OS: Win Server 2012 R2 Standard (v. 6.3.9600)
VS: VS Enterprise 2015 (v. 14.0.23107.0 D14REL)
SourceTree: 2.1.11.0

Thanks,
elloco

Answer 1

Thanks to Edward Thomson for suggesting to install update 3 for VS2015, this seems to have done the trick for me. No more unchanged files in my list of changes.