Strange problems with GA1!

Hi,

I’ve been writing a track and using GA (v1.3.9.4) for my drums. I’ve had no problems in the past when using GA, including on this track, until just now when for some reason GA appears to be changing the EQ or filter settings on my kick drum. However, nothing is being automated and no parameters change when it happens. I’ve checked every plugin, channel and parameter that might be responsible but I can’t find anything. It also started happening suddenly after I had bounced a few bars of drums, which wouldn’t (shouldn’t?) have anything to do with it.

Here’s a clip to demonstrate - https://www.dropbox.com/s/nkvn9r35a4mc15l/test.wav

Does anyone have any idea?