Cache not clearing in some regions

Cache is not clearing for a particular JSON file in a particular datacenter.
Datacenter IP with the problem: 2606:4700:839a:47c:a43b:31:627:b9f0
The file is not getting updated when it is loaded from this datacenter.
We have tried purging the cache by URL. It is clearing the cache in other regions, but not at this datacenter.

When loading the file using postman or another website, we are able to see the updated file.
in both cases the header CF-CACHE-STATUS is HIT.

Please see the screenshots below.