When I start kmail for first time, I try to switch the default "local folder" directory from ~/.local/share/local-mail to ~/Correo - my personal maildir directory, which has always been worked just fine in previous releases. In this release, however, it does not. The directory change dialog correctly states that there is a maildir directory there. But once I click OK, it does not read my maildir and does not replace the default folders with my own ones, as it used to - instead, it does nothing at all, no disk activity, nothing. I only get a second "local folder" entry in my collection, one without subtrees.

Taking a look at akonadiconsole, this is what I get in the debugger tab just after I click OK in the folder change dialog:

akonadi_maildir_resource_0 (0x14c2780) 10 { Command: "FetchCollections" Collections: "UID " Depth: "2" Resource: "akonadi_maildir_resource_0" Mimetypes: "()" Ancestors Depth: "2" Ancestors Attributes: "QSet()" Enabled: "false" Sync: "false" Display: "false" Index: "false" Status: "false" }
akonadi_maildir_resource_0 (0x14c2780) 10 { Response: "FetchCollections" Error Code: "0" Error Msg: "" ID: "3" Name: "Carpetas locales" Parent ID: "0" Remote ID: "/home/dcg/.local/share/local-mail" Remote Revision: "" Resource: "akonadi_maildir_resource_0" Mimetypes: "(message/rfc822, inode/directory)" Statistics: { Count: "-1" Unseen: "-1" Size: "-1" } Search Query: "" Search Collections: "QVector()" Cache Policy: { Inherit: "false" Interval: "-1" Cache Timeout: "1" Sync on Demand: "true" Local Parts: "(ENVELOPE)" } Ancestors: { { ID: "0" Remote ID: "" Name: "" Attributes: "QMap()" } } Attributes: "QMap((AccessRights, C)(ENTITYDISPLAY, ("Carpetas locales" "folder" "" ()))(SpecialCollectionAttribute, local-mail))" Display: "Undefined" Sync: "Undefined" Index: "Undefined" Enabled: "true" Virtual: "false" Referenced: "false" }
akonadi_maildir_resource_0 (0x14c2780) 10 { Response: "FetchCollections" Error Code: "0" Error Msg: "" ID: "4" Name: "sent-mail" Parent ID: "3" Remote ID: "sent-mail" Remote Revision: "" Resource: "akonadi_maildir_resource_0" Mimetypes: "(message/rfc822, inode/directory)" Statistics: { Count: "-1" Unseen: "-1" Size: "-1" } Search Query: "" Search Collections: "QVector()" Cache Policy: { Inherit: "true" Interval: "-1" Cache Timeout: "1" Sync on Demand: "true" Local Parts: "(ENVELOPE)" } Ancestors: { { ID: "3" Remote ID: "/home/dcg/.local/share/local-mail" Name: "Carpetas locales" Attributes: "QMap()" } { ID: "0" Remote ID: "" Name: "" Attributes: "QMap()" } } Attributes: "QMap((ENTITYDISPLAY, ("sent-mail" "mail-folder-sent" "" ()))(SpecialCollectionAttribute, sent-mail))" Display: "Undefined" Sync: "Undefined" Index: "Undefined" Enabled: "true" Virtual: "false" Referenced: "false" }
akonadi_maildir_resource_0 (0x14c2780) 10 { Response: "FetchCollections" Error Code: "0" Error Msg: "" ID: "5" Name: "outbox" Parent ID: "3" Remote ID: "outbox" Remote Revision: "" Resource: "akonadi_maildir_resource_0" Mimetypes: "(message/rfc822, inode/directory)" Statistics: { Count: "-1" Unseen: "-1" Size: "-1" } Search Query: "" Search Collections: "QVector()" Cache Policy: { Inherit: "true" Interval: "-1" Cache Timeout: "1" Sync on Demand: "true" Local Parts: "(ENVELOPE)" } Ancestors: { { ID: "3" Remote ID: "/home/dcg/.local/share/local-mail" Name: "Carpetas locales" Attributes: "QMap()" } { ID: "0" Remote ID: "" Name: "" Attributes: "QMap()" } } Attributes: "QMap((ENTITYDISPLAY, ("outbox" "mail-folder-outbox" "" ()))(SpecialCollectionAttribute, outbox))" Display: "Undefined" Sync: "Undefined" Index: "Undefined" Enabled: "true" Virtual: "false" Referenced: "false" }
akonadi_maildir_resource_0 (0x14c2780) 10 { Response: "FetchCollections" Error Code: "0" Error Msg: "" ID: "-1" Name: "" Parent ID: "-1" Remote ID: "" Remote Revision: "" Resource: "" Mimetypes: "()" Statistics: { Count: "-1" Unseen: "-1" Size: "-1" } Search Query: "" Search Collections: "QVector()" Cache Policy: { Inherit: "true" Interval: "-1" Cache Timeout: "-1" Sync on Demand: "false" Local Parts: "()" } Ancestors: { } Attributes: "QMap()" Display: "Undefined" Sync: "Undefined" Index: "Undefined" Enabled: "true" Virtual: "false" Referenced: "false" }
akonadi_maildir_resource_0 (0x14c2780) 11 { Command: "Transaction" Mode: "Begin" }
akonadi_maildir_resource_0 (0x14c2780) 11 { Response: "Transaction" Error Code: "0" Error Msg: "" }
akonadi_maildir_resource_0 (0x14c2780) 12 { Command: "CreateCollection" Name: "Carpetas locales" Parent: "UID " Remote ID: "/home/dcg/Correo/" Remote Revision: "" Mimetypes: "(inode/directory, message/rfc822)" Sync: "Undefined" Display: "Undefined" Index: "Undefined" Enabled: "true" Virtual: "false" CachePolicy: { Inherit: "false" Interval: "-1" Cache Timeout: "1" Sync on Demand: "true" Local Parts: "(ENVELOPE)" } Attributes: "QMap((AccessRights, wcdC))" }
akonadi_maildir_resource_0 (0x14c2780) 12 { Response: "FetchCollections" Error Code: "0" Error Msg: "" ID: "11" Name: "Carpetas locales" Parent ID: "0" Remote ID: "/home/dcg/Correo/" Remote Revision: "" Resource: "akonadi_maildir_resource_0" Mimetypes: "(message/rfc822, inode/directory)" Statistics: { Count: "-1" Unseen: "-1" Size: "-1" } Search Query: "" Search Collections: "QVector()" Cache Policy: { Inherit: "false" Interval: "-1" Cache Timeout: "1" Sync on Demand: "true" Local Parts: "(ENVELOPE)" } Ancestors: { } Attributes: "QMap((AccessRights, wcdC))" Display: "Undefined" Sync: "Undefined" Index: "Undefined" Enabled: "true" Virtual: "false" Referenced: "false" }
akonadi_maildir_resource_0 (0x14c2780) 12 { Response: "CreateCollection" Error Code: "0" Error Msg: "" }
akonadi_maildir_resource_0 (0x14c2780) 13 { Command: "Transaction" Mode: "Commit" }
akonadi_maildir_resource_0 (0x14c2780) 13 { Response: "Transaction" Error Code: "0" Error Msg: "" }
akonadi_maildir_resource_0 (0x14c2780) 14 { Command: "Transaction" Mode: "Begin" }
akonadi_maildir_resource_0 (0x14c2780) 14 { Response: "Transaction" Error Code: "0" Error Msg: "" }
akonadi_maildir_resource_0 (0x14c2780) 15 { Command: "DeleteCollection" Collection: "UID 3" }
akonadi_maildir_resource_0 (0x14c2780) 15 { Response: "DeleteCollection" Error Code: "0" Error Msg: "" }
akonadi_maildir_resource_0 (0x14c2780) 16 { Command: "DeleteCollection" Collection: "UID 4" }
akonadi_maildir_resource_0 (0x14c2780) 16 { Response: "DeleteCollection" Error Code: "1" Error Msg: "No such collection." }
akonadi_maildir_resource_0 (0x14c2780) 16 { Response: "DeleteCollection" Error Code: "1" Error Msg: "Failed to parse stream" }
akonadi_maildir_resource_0 (0x14c2780) 17 { Command: "DeleteCollection" Collection: "UID 5" }
akonadi_maildir_resource_0 (0x14c2780) 17 { Response: "DeleteCollection" Error Code: "1" Error Msg: "No such collection." }
akonadi_maildir_resource_0 (0x14c2780) 17 { Response: "DeleteCollection" Error Code: "1" Error Msg: "Failed to parse stream" }
akonadi_indexing_agent (0x14bc630) 9 { Command: "FetchCollections" Collections: "UID 11" Depth: "0" Resource: "" Mimetypes: "()" Ancestors Depth: "2" Ancestors Attributes: "QSet(ENTITYDISPLAY)" Enabled: "false" Sync: "false" Display: "false" Index: "true" Status: "false" }
MailFilter Kernel ETM (0x14cb6f0) 12 { Command: "FetchCollections" Collections: "UID 11" Depth: "0" Resource: "" Mimetypes: "()" Ancestors Depth: "2" Ancestors Attributes: "QSet()" Enabled: "true" Sync: "false" Display: "false" Index: "false" Status: "true" }
AkonadiConsole Browser Widget (0x14d28b0) 10 { Command: "FetchCollections" Collections: "UID 11" Depth: "0" Resource: "" Mimetypes: "()" Ancestors Depth: "2" Ancestors Attributes: "QSet()" Enabled: "true" Sync: "false" Display: "false" Index: "false" Status: "false" }
Archive Mail Kernel ETM (0x14cbc30) 12 { Command: "FetchCollections" Collections: "UID 11" Depth: "0" Resource: "" Mimetypes: "()" Ancestors Depth: "2" Ancestors Attributes: "QSet()" Enabled: "true" Sync: "false" Display: "false" Index: "false" Status: "true" }

And this message: AgentBase(akonadi_maildir_resource_0): Failed to parse stream

Akonadi version is 5.5.0 (this version is not selectable in the bugzilla BTW) which I got with apps 17.04.0, distro is arch