You can have multiple ldmd configuration files with various names. The names are case-sensitive (that is, "Alpha" and "alpha" are different names), so you can have configuration files that use the same word. The Oracle ILOM UI names are case-insensitive, but they are case-preserving. Thus, multiple configuration file names like "Alpha" and "alpha" cause confusion in the Oracle ILOM UI.
For example, if you type the following when there are multiple configuration file names, the UI will hang:
-> show /HOSTx/domain/configs
Workaround: Remove one of the case-matching ldmd configuration files. Then, wait for the Oracle ILOM infrastructure to auto-restart the UI process.