Here's a problem I've run into:

1. Launch Pd-ext.
2. Create new patch.
3. Create [demux].
4. Notice console message.
5. Right-click and choose help.
6. Notice console error: couldn't find help patch.
7. No help patch for [demultiplex] either, but there is one for

[zexy/demultiplex]. (Notice, however, that [zexy/demux] won't even create.)

Now try the whole process, but in step 3 create [demultiplex] instead of [demux]. Now all the help patches are found (though zexy/demux still won't create).

What's going on?

-Jonathan