Twitch broadcasting: issue submitting frames

When I start trying to stream from the new snapshot, it works for about 3 seconds then times out (see attached screens).

The console is also spammed with theses lines:
-Issue submitting frame: TTV_WRN_FRAMES_QUEUEING (Error code -995)
-Issue streaming frame: TTV_WRN_FRAMES_QUEUEING (TTV_WRN_FRAMES_QUEUEING)
-Warning in SubmitTexturePointer: TTV_WRN_FRAMES_QUEUEING

(see attached screen)