That's what it could mean.

1) many [wingman+repairs] queued for Linux [Mac not live yet], so there are no slots left to get new work to load onto any Windows asking client [there is no pre-platform assignment, only when the first of the pair goes out is the wingman locked in for the platform].

2) There really is momentarily no new work in the feeder but for that of 1) above. For those conditions there's buffer ability [thousands] and the patience needed to let is pass, or set additional sciences if you do not feel safe to eat into the buffer stock.

edit: save or safe, it's beans to me [English is Hotch-Potch, Turkish origin and today in news, the second language in England+Wales is Polish and 30-100% of their beef based products is really horse meat... RLoL :D]