If I had to pick one for fun, I'd say the inability to meaningfully process changes in energy. There's a change at work, good or bad, and you can't ride the wave (in time | effectively | appropriately | etc). Or there's a change in self, good or bad, and you can't process it, so you bring it to work and it interrupts your success at work.
That stuff is always happening all around us and within us, and it's extremely rare that people know it needs to be handled, let alone what to do about it. We are still in the stone age of this kind of work, and it not only blocks our own success but also propels us to block others' success whether we want to or not. We think/fear that it's only about emotions, we aren't sure what other words to use, we conflate labels with truth in the space, we overuse the disease model when other models provide more traction, and so on. A huge mess.