Hi,
After the installation of the "ArcGIS Server Security 2022 Update 1 Patch" on our production 10.9.1 ArcGIS servers (running on Linux), all WMTS capabilities are unable to be accessed, returning an "Invalid URL" error on the server.

The only way i have found to resolve the issue and re-enable this functionality for our customers is to remove the patches from our servers (which i am in the process of performing now).
Has anyone else experienced this issue, or have it working successfully on Windows? I have a called logged with our ESRI support and am currently waiting to hear back.
Patch was installing using the inbuilt "patchnotification" tool.
Thanks,
Kat.