Notebook Tasks suddenly not scheduling

[StuartMoore]

so i have a Notebook that is scheduled to run every 15 minutes (it was every hour but i changed it about a week ago) it seemed to run fine for the first 4/5 days but since the 14th its not scheduled another task

i have manually run the notebook without issue, is there some sort of outage?

thanks

Stu

[GabrielMarcus_C]

I've encountered the same problem this weekend. 
Is there a BUG number associated with this?