Red mark on folder in Project

Hi

I was trying to create a folder in my project in HANA Studio and when I did a "check out", the folder activation mark on the folder turned red.

Earlier, I was not able to checkout my folders in my workspace in Repository, it shows the message, "checkout successful", but there is no check mark on the folder, and the folder is not created on my system either. Do you think the problems are connected?

I have attached the screen shot of the red mark in data folder.