Hazel is, well, snoozing.

I've been using Hazel to manage video encoding on some unsupervised machines. Every so often I get a report that files are not showing up in the destination as they should be. I go and take a look, and there are a bunch of files siting in the watched folder, and Hazel is just ignoring them. I click Preview Rule Matches... and it shows me a list of all the files in the folder. I click Run Rules Now and Hazel dutifully gets right to work and processes the files as expected.
I almost feel like the boss coming across a sleeping employee. Any idea why this might be happening? I'm on version 2.3.8 on Snow Leopard. Any reason to think this will be fixed by updating to 2.3.10 (it's 15 machines, all of which are in near constant use, so upgrading is a bit of a challenge)?
I almost feel like the boss coming across a sleeping employee. Any idea why this might be happening? I'm on version 2.3.8 on Snow Leopard. Any reason to think this will be fixed by updating to 2.3.10 (it's 15 machines, all of which are in near constant use, so upgrading is a bit of a challenge)?