Calender not showing project dates

For the last 48hrs any projects that I add a date to for either a task or a sub task are no longer appearing on the overview calender.

If i look at the specific project and the calender within there it is showing OK.

This has been working fine for the last 3 years and has only just started

Welcome, @Carl_B, and sorry to hear this.

I haven’t noticed any similar reports from others, so I recommend: Try these troubleshooting steps, then please create a support ticket: see How to contact our Support Team.

Thanks,

Larry