After upgrading to recent version 3.2.99.20180207 of FreeBSD port archiveopteryx-devel, which is based on https://github.com/aox/aox/commit/8a59400320d94eaceb47045613eda75dbfe4b1eb the following happened:
1. schema was upgraded from 97 to 98 (which added column ‚flag‘ to mailboxes) 2. aox and server produced tons of aox: Note: Expected type string for column „flag“, but received null 3. To stop the messages, I inserted a " " in the new column. 4. On both macos and ios Apple mail applications, all subscribed folders had disappeared. Attempt to subscribe them again failed. No problems on Thunderbird. 5. After downgrading of schema and bringing up previous version (archiveopteryx-devel-3.2.99.20170718, based on a6e31e13d2) brought the folders back Axel --- PGP-Key:29E99DD6 ☀ computing @ chaos claudius