Odyssey 7q timecode

Sync e won’t take TC from 7q and 7q won’t take TC from Sync e. Sync e is working fine with my 633. I can send TC from the 7q to the 633. So why does my mixer see the TC from the 7q but the Sync e doesn’t. Sync e is set to line level. I need to take TC from the 7q.