I was hoping a later release would not suffer from this. Here is what I did:
(I'm running 'stretch' at the moment.) apt-get source ardour apt-get build-dep ardour Downloaded the latest ardour sources from https://community.ardour.org/src/ (5.9.0) using uscan. unpacked the sources, copied the debian/ files from the 5.5.0 source tree. I had to disable the 0080-more-spelling.patch because it wouldn't cleanly apply (needs an update). Otherwise dpkg-buildpackage -b --no-sign produced a new package. Installed and tested. Bug is still reproducible. My versions: ardour 1:5.9.0~dfsg-1 libcairo2:amd64 1.14.8-1 calf-plugins 0.0.60-4+b1 -- D.H. van Dok :: System administrator :: www.nikhef.nl/grid :: Phone +31 20 592 22 28 :: http://www.nikhef.nl/~dennisvd/