When creating a reverse proxy service keyring setting to things other than "default", the new service still use "default" as it's keyring.
The issue happens if the new service is created by following steps.
1. Create a new "HTTP" proxy service then Click OK
2. Without clicking Apply, edit the created service. Change "HTTP" proxy to "HTTPS Reverse Proxy" and change keyring to appliance-keyring from default then click OK
3. Click Apply
Release : SGOS 6.7.5.12, 7.2.7.2 and 7.3.3.3
Component :
This is known limitation. If the issue happens, it is needed to change keyring setting after that.
Workaround:
After creating the new proxy service, edit keyring setting again.