Upload processor does not run

Recently I've noticed my configured upload processor is not running after an upload. I have an upload processor I wrote in JS and have configured it for ZIP files and several other file types in SCFG > FIle Options > Testable Files. As the sysop, normally I'd upload a single file by copying the file into the filebase directory, logging onto my BBS, and using the ;UPLOAD command. The upload processor would always run after uploading the file that way, but currently it is not - at least not for ZIP files.