Trios Crew fill

Since the beginning of the season, I have been running into an intermittent issue when attempt to crew fill Trios. I end up in a trios lobby alone. 

This has been an exceedingly frustrating issue with the matchmaking. I am finding very little motivation to continue to play this game, which I otherwise love, given that at any moment I can be placed in a no-win scenario at random and lose all of the items I have worked for.