Matrix Notification plugin template render failure

I’ve have had a drone instance deployed for a while but largely idle. For a while it was sending notifications successfully using the Matrix Notification Plugin:

Build success mike/Notes#e1725629 (master) by mike

(where mike/Notes#e1725629) was a proper link

Now, when I run a pipeline, I get this:

Build [/#]() () by

It looks like the go template isnt rendering correctly from here, and instead is just a bunch of blank values.

Any suggestions before I open up an issue on the project repo? Thanks!