Interesting you say this. I have a similar issue with the Yun but I removed all that Linino OSJS crap and reverted to 1.5.3 by flashing everything from https://www.arduino.cc/en/Tutorial/YunUBootReflash
But that is probably NOT compatible at all with the Tian.
Anyway, now I am starting to think that my bridge problem is related to the overlay. I will test something and get back to you on this one.