Timeline in team-project stopped working -- asking to include issues from project only.

[Peter B_]

We started getting this message today on our timeline view:

"To use this timeline, edit your board filter to include issues from Web App only"

I followed the instructions to adjust the board filters to no avail. Could it be related to the fact that I removed an old project key from the project settings? How do I diagnose? thanks. 

[John Funk]

Hi Peter - Welcome to the Atlassian Community!

It's a Team-managed project? Those are self contained and not meant to use multiple projects.