Uploaded files in Vault are empty

Hello
I installed cryptomator on Linux Ubuntu 20.04.2 and created a new vault successfully.

  1. The welcom-file in the vault was empty
  2. Uploaded files into the vault have been created, but were all empty ;-((

Here are more details:

  • the container is located on a SFTP account.
  • DriveSettings: type=WebDav, port=42427, scheme=dva://(Gnome, Nautilus,…)
  • I can not find any errors in log file
18:26:21.356 [main] INFO  org.cryptomator.launcher.Cryptomator - Starting Cryptomator 1.5.15 on Linux 5.8.0-55-generic (amd64)
18:26:21.540 [JavaFX Application Thread] INFO  o.c.ui.launcher.FxApplicationStarter - JavaFX Runtime started.
18:26:33.619 [App Background Thread 003] INFO  o.c.frontend.webdav.WebDavServer - Binding server socket to localhost:42427
18:26:33.631 [App Background Thread 003] INFO  o.e.jetty.server.AbstractConnector - Started ServerConnector@74f96403{HTTP/1.1, (http/1.1)}{localhost:42427}
18:26:33.638 [App Background Thread 003] INFO  org.eclipse.jetty.server.Server - jetty-10.0.1; built: 2021-02-19T18:44:52.951Z; git: d0bfd9145ddac13b73e98b2637fcbf4a48132397; jvm 16+36
18:26:33.673 [App Background Thread 003] INFO  o.e.j.server.handler.ContextHandler - Started o.e.j.s.ServletContextHandler@3325391b{/,null,AVAILABLE}
18:26:33.686 [App Background Thread 003] INFO  org.eclipse.jetty.server.Server - Started Server@49caef3c{STARTING}[10.0.1,sto=0] @13783ms
18:26:33.686 [App Background Thread 003] INFO  o.c.frontend.webdav.WebDavServer - WebDavServer started.
18:26:33.721 [App Background Thread 003] INFO  o.e.j.s.s.DefaultSessionIdManager - Session workerName=node0
18:26:33.727 [App Background Thread 003] INFO  o.a.j.w.server.AbstractWebdavServlet - authenticate-header = Basic realm="Jackrabbit Webdav Server"
18:26:33.728 [App Background Thread 003] INFO  o.a.j.w.server.AbstractWebdavServlet - csrf-protection = null
18:26:33.728 [App Background Thread 003] INFO  o.a.j.w.server.AbstractWebdavServlet - createAbsoluteURI = true
18:26:33.728 [App Background Thread 003] INFO  o.e.j.server.handler.ContextHandler - Started o.e.j.s.ServletContextHandler@33292052{/TNd1eZaREHSS/cmContainer1,null,AVAILABLE}
18:26:33.729 [App Background Thread 003] INFO  o.c.f.w.s.WebDavServletController - WebDavServlet started: /TNd1eZaREHSS/cmContainer1
18:26:33.747 [App Background Thread 003] INFO  o.c.f.w.s.WebDavServletController - Mounting http://localhost:42427/TNd1eZaREHSS/cmContainer1 using org.cryptomator.frontend.webdav.mount.LinuxGioMounter
18:26:33.958 [JavaFX Application Thread] INFO  o.c.ui.unlock.UnlockWorkflow - Unlock of 'cmContainer1' succeeded.
18:28:34.489 [App Background Thread 006] INFO  o.e.j.server.handler.ContextHandler - Stopped o.e.j.s.ServletContextHandler@33292052{/TNd1eZaREHSS/cmContainer1,null,STOPPED}
18:28:34.490 [App Background Thread 006] INFO  o.c.f.w.s.WebDavServletController - WebDavServlet stopped: /TNd1eZaREHSS/cmContainer1
18:28:34.490 [App Background Thread 006] INFO  org.cryptomator.common.vaults.Vault - Unmounted vault 'cmContainer1'
18:28:34.493 [JavaFX Application Thread] INFO  org.cryptomator.ui.lock.LockWorkflow - Lock of cmContainer1 succeeded.
18:28:46.850 [App Scheduled Executor 01] INFO  o.c.common.settings.SettingsProvider - Settings saved to /home/msg-vsd/.config/Cryptomator/settings.json
18:28:58.696 [App Scheduled Executor 02] INFO  o.c.common.settings.SettingsProvider - Settings saved to /home/msg-vsd/.config/Cryptomator/settings.json
18:29:08.020 [App Scheduled Executor 01] INFO  o.c.common.settings.SettingsProvider - Settings saved to /home/msg-vsd/.config/Cryptomator/settings.json
18:29:40.264 [App Background Thread 006] INFO  o.a.j.w.server.AbstractWebdavServlet - authenticate-header = Basic realm="Jackrabbit Webdav Server"
18:29:40.264 [App Background Thread 006] INFO  o.a.j.w.server.AbstractWebdavServlet - csrf-protection = null
18:29:40.264 [App Background Thread 006] INFO  o.a.j.w.server.AbstractWebdavServlet - createAbsoluteURI = true
18:29:40.264 [App Background Thread 006] INFO  o.e.j.server.handler.ContextHandler - Started o.e.j.s.ServletContextHandler@a295886{/TNd1eZaREHSS/cmContainer1,null,AVAILABLE}
18:29:40.265 [App Background Thread 006] INFO  o.c.f.w.s.WebDavServletController - WebDavServlet started: /TNd1eZaREHSS/cmContainer1
18:29:40.280 [App Background Thread 006] INFO  o.c.f.w.s.WebDavServletController - Mounting http://localhost:42427/TNd1eZaREHSS/cmContainer1 using org.cryptomator.frontend.webdav.mount.LinuxGioMounter
18:29:40.327 [JavaFX Application Thread] INFO  o.c.ui.unlock.UnlockWorkflow - Unlock of 'cmContainer1' succeeded.

Any hints what is wrong?
Thanks in advance
Viktor