When I write code in a specific project, an Intellisense window appears, but the list is empty (it is invisible as elements), and when I try to click, nothing happens.


Before I saw that the Intellisense window does not pop up, but I have a different problem.
So what I did to solve:
- Verified items from the options window
- suo files deleted
- reset user settings
- restart VS and machine
I opened another project and it works. But for a specific project this is not so. I searched googled but did not find a similar problem.
The problem has just occurred.
I am using VS 2015, version 14 Update 2
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