Just recently started having this issue. During multi colored prints, after changing filament right as it starts to purge into the prime tower, it seems to start purging into the tower slowly, maybe even a slight pause. However its still extruding. This causes it to push too much filament into the tower eventually causing blobs and knocking over the prime tower and sometimes even causing layer shifts cause it crashes into the blobs.
I have tried alot of things to fix this but im running out of ideas. Anyone experience this or have an idea on how to fix it?
