For the electrical trap, if you have a barrel/case/crate over the vent in the middle and there is still electrified water there, try walking into it; it will stun a character for 3 or 4 seconds, but should clear the trap. I had a problem the first couple times I tried this, but reloading the same save a few times after that, I had no trouble clearing the trap as intended.
If your characters' portraits are chained together (the default), the non-lead characters should follow. Try a different formation (button above the portraits).
