In The Flash, Season 8, Episode 9, "Phantoms" the group is once again spending time basically trying to solve two mysteries at the same time and once again that appears to make for a much worse episode than the one that came before it. This has unfortunately become a very annoying pattern with the long-running CW series that has led to a very uneven Season 8. The writers don't seem to either want to, or have the ability to spend the entire episode on the main storyline. So they spend some time on two different storylines that end up putting The Flash on screen for a couple of minutes per episode at most. After the last two episodes, it felt like that little problem was fixed, but it turned out to be a temporary solve.