Sometime intellisense will not prompt user defined functions or variable

[Victsz]

The project contains a lot of files, due to https://github.com/Microsoft/RTVS/issues/3923, may be the issue

If you have any screenshots demonstrating the issue, please include them as well to help us diagnose it better.

Additional information:

OS Information Version: Microsoft Windows NT 6.3.9600.0

RTVS Information: Assembly: Microsoft.VisualStudio.R.Package, Version=1.2.30905.1244, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a

Active R URI: R 3.3.2: C:\Program Files\R\R-3.3.2