Forge 40.1.73
JEI 10.1.3.240
Configured 1.5.3-1.18.2

In-game button of the JEI mod brings up a screen showing only jei-server.toml. This screen is generated by Configured. It for whatever reason does not show jei-client.toml.

Same issues occur in ATM 8 and Inclusive 2 modpacks, both being in 1.19.2
Multiple mods have just a blank config page or server configs only available to them.
It's really a big pain having to relaunch a pack just to change something every time!!

This is because that 10. version of JEI changed the way the configs work, and it no longer managed by forge. JEI needs to either revert or create a custom menu for configured to load.

Downgrade to the 9. version and it will be fixed

JEI changed their config system, due to creating a Fabric version. They have now moved to a config system that can be used for both loaders, which means it would no longer work. However, if you update to 2.1.0 on 1.19.3 you can use it again. I can't fix on anything lower since the API needed in JEI is only available in 1.19.3 or higher.