I’m on iOS 8.1 on an iPhone 5 and only a handful of my KM macro groups are showing. I can’t seem to find a common thread between the showing and non-showing groups.
In Keyboard Maestro Control you mean?
Only active macros will be available - that is, the macro must be enabled, and the macro group must be enabled and active in the current context.
Yes, in km control. And they are enabled.
In that case, at a status menu trigger and verify that the macro is appearing in the Keyboard Maestro status menu.