Created attachment 119972 [details] the 2 folders: MAIF_cuisine... synced, MAIF WC... not synced SUMMARY STEPS TO REPRODUCE I copy a local folder in my imap account. In my webmail account i see the folder is created and filled with all messages. Good. I copy another local folder in my imap account. In my webmail account i see the folder is created and not filled with its messages! i waited for next day. i also tried to copy the second folder in the first one => same result. note; my webmail account is a roundcube one. SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: (available in About System) KDE Plasma Version: 5.15.5 KDE Frameworks Version: 5.57.0 Qt Version: 5.12.3 ADDITIONAL INFORMATION kde app 19.04