Limit on Bloodhound sources used?

Hi all,

We've been using this typeahead without many issues in multiple projects. Now, for some CRM application, we have a typeahead set up with 8 different Bloodhound sources. It all seems to work, untill we tried searching for something that the 7th or 8th remote source should return. Turns out only the first 5 (or 6) resources are being used. Only when I backspace a character, and type it again, we are getting results from the last few resources.

Is there a limit option we missed, or is it browser related? We're in the dark on this one.

We implemented an older version 0.11.1 since that one never had any bugs in previous projects.
We tested on latest FireFox.