How to Fix a Ukulib Config Screen That Won't Open or Shows Blank

Check the Dependency Chain

A blank or missing config screen almost always means the mod that owns the options is not loading correctly, not that Ukulib is broken. Confirm the dependent mod is actually present and enabled in your mod list. If it is disabled or failed to load, its config button will not appear. Also make sure you are not running a mismatched set where one mod expects a newer or older Ukulib than you have — version mismatches between a library and its dependents are a common cause of screens that render empty.

Look at the Logs

Open your latest log file and search for the mod's name and for "Ukulib". Exceptions thrown while building the screen will be logged there, often naming the exact option or widget that failed. A single malformed config entry can abort the whole screen, leaving it blank. If you see a stack trace pointing at a config class, that mod's config is the culprit.

Reset the Config File

If the screen opens but is empty or crashes on open, the stored config file may be corrupt or contain a value outside the allowed range. Close the game, back up the config file for that mod, then delete or rename it. On next launch the mod regenerates defaults, and the screen should populate. Re-apply your settings through the UI rather than hand-editing the file to avoid reintroducing the bad value.