/api/ce/acitivity returning 404 intermittently

We are calling /api/ce/activity with
component = <project_key>
ps=1
onlyCurrents=true

This is intermittently returning 404 and the frequency of the same is not less.

While verifying the response header we noticed few stark difference:

Failed request: "X-Cache": ["Error from cloudfront"]
Successful request
: **"X-Cache": ["Miss from cloudfront"]
**
We are trying to figure out the potential reason for this and any workaround.

Hi,

Welcome to the community and thanks for this report!

Can you identify approximately when this started?

 
Thx,
Ann