Hi, Can you get version 0.29 of experimental and test it so we can see if the problem still occurs? Download of https://ftp.debian.org/debian/pool/main/c/celluloid/celluloid_0.29-1_amd64.deb After: dpkg -i celluloid_0.29-1_amd64.deb See https://tracker.debian.org/news/1651814/accepted-celluloid-029-1-source-into-experimental/ Thanks!