I remember our events team wanted this same thing and we were advised to have the first task in the template be the show date (or in your case the completion date), then use predecessors with lag, to work back from that date, to calculate the task dates (using Schedule Mode - Start Date). Here's an ...

Did that user log time associated with an hourly rate? If so, then no - their hours are still included in the Finance > Actual Cost section, but you could manually delete any hours from the project, if needed.

Yes, that can be frustrating for sure. Workfront has a detailed explanation here. If you don't care if that user is still on completed tasks, you can go to the People tab first and remove them from the team, which removes them from incomplete tasks at the same time. That's one of the checks I do bef...

I did something similar using @Doug_Den_Hoed__AtAppStore's Targeted Auditing Proof of Concept on a project report, where the Status column is a calculated field showing our custom statuses and the Status History column is another calculated field that shows each time the Status field is changed. Her...

Not here, our boards are still intact. Hopefully it's just a glitch and support can find them for you. Did you open a ticket?

Done! 

Yes, us too. I have a support ticket on this issue. They had said it was fixed, but it's still affecting some of my users. Support confirmed the behavior is still occurring, but it only impacts filters shared from a layout template (so pretty much all of my instance ) and they're currently working o...

Same as Rafal, and I did use an incognito browser window 

Yes, but I don't filter for only Active projects because I make a decision of "Acknowledged - Correcting Proof Workflow" on proofs attached to projects that are complete and I make sure the proof email notification goes to the project manager. It's really cut down on how much I have to force close p...

Agree with Kurt, the calendars need an overhaul, but I created our Marketing Calendar and use the Gantt view. It's not great, but it's functional. Since you can't add programs (which we use for campaigns) to a calendar I created a project for each functional area, then a task for each campaign we pl...