Default USB OTG won't mount

I bought today a USB OTG cable and it works perfectly with 2 of my 3 USB sticks. The 3rd one just won't mount, when I connect the stick it shows me it was connected but nothing else happens.

Unfortunately I don't have a PC to test the USB stick or something, I really need to access the data via. USB OTG with my phone.

I'm on a stick unrooted KitKat if that helps.

Sent from my LG-D802 using xda app-developers app