I am having same issue. I have one master host, linux based, where i upload pdf files, then i have multiple hosts with ready only secrets. Some are linux based servers to provide multiple data source, rest OSX, Windows and mobile clients. This being on 1.1.42 on the linux side, the clients whatever they have - based on the auto update features. I will be updating to the latest version (1.2.73) now, hoping this will not repeat. Secrets are 100% read only. Are there more reports on read only sync going wrong way and is this something that has been addressed? thank you