[Argorak]

I have strange issues with CtrlP, especially files not being found although they would be a clear match.

[ehynds]

Are they already open / matched by wildignore?

[dguaraglia]

As ehynds points out, CtrlP won't list files that are already open. You are supposed to access those using the 'quick buffer switch' mode. I've bound that command to my Tab key, so seeing what files are open and switching between them is a snap.