I've tried installing Filter Extensions - Default Configuration from CKAN. For whatever reason, multiple parts including Hydraulic Cylinders and the KAL were not responding to user input properly when I had it installed.
I have no clue why, I don't even know if this specific mod caused it, but removing the mod always fixed the issue.
I don't have any log files, as this didn't cause any crashes.
Here's a pastebin with my mods from CKAN.