T7- Imressions

[fwsuperhero]

I have two questions:
1) Is there any reason why adding loop? it messes with my plugins.
2) Is file same as loop? Should it be synced as a loop? Then i wouldnt add loop directory.

Problem:
I am almost sure preview of my loop wassynced but it is not anymore. I ve got sync checked in options, so i dont know what i do wrong
They are not synced even if i drag them into audio lane