Hi,
I've been having problems with the adventure board on holidays in all locations - I've been resorting to manually launching them via Master Controller. I currently have a quest line from France which requires me to go to Eygpt and I also have one in which I need to return to China. I'm not currently in any vacation worlds though.
I have also been having script errors because of role assignment to foreigners (which I found out by looking at the script error files) so I was planning on installing the Register mod also at the FAQ's reccommendation.

I was planning to install both Register and Traveler to hopefully fix these problems but shall I complete the quest lines before installing? I'm worried if I install it whilst I already have questlines underway it will mess something up - just wanted to ask for a second opinion or any advice.

Thanks!

Installing Traveler with an active quest should be fine, although maybe the quest would be cancelled if it's already borked in some way. But you could still use MC to reassign that step of the quest afterwards. With Traveler installed, an intermediate step should also be available from the adventure board.

Even with Traveler in place from the beginning, sometimes multi-world quests get cancelled when you arrive in a new world, for various reasons. But I've never had trouble picking up that same leg of the quest from the adventure board as soon as my sims arrive.

As always, if you're worried about how the game will react to something, use "save as" to rename the save first, so your original remains intact as a backup. Then you can experiment on the new copy and revert to the old one if necessary.

Great, thanks so much!