[SOLVED] Collaborate seems to disable itself

Hello, we have been using collaborate with no problem untill Today.

Now the collaborate window displays that "I have files to publish" (I do), but when I click on the collaborate window it goes grey and says "you need to enable Collaborate".
I go to collaborate setup and it remains enabled, but now the project does not show the blue indicators on my changes and the window keeps displaying "you need to enable collaborate"
We are using Unity2017.2.0f3

Any tip on what is going on?

If I close the project and run it again, the blue indicators are on again and collaborate displays "you have files to publish" again.... until I click on the collaborate window.

Thank you!

 

Well, I have updated to 2017.3 and at first it didn´t solved it; but the second time I opened the project seems to be working fine again. For anyone having this trouble, I can´t tell if the upgrading was the solution or if it just solved in time.