Would you be able to try this again from the latest Github version? There have been a bunch of changes in that area so it probably won't be going through GLib.Marshaller.StringToFilenamePtr any more, although it might still fail elsewhere..
Would you be able to try this again from the latest Github version? There have been a bunch of changes in that area so it probably won't be going through GLib.Marshaller .StringToFilena mePtr any more, although it might still fail elsewhere..