keepassxc firejail'd: /run/user/1000/gvfs type:fuse.gvfsd-fuse - invalid read-only mount

[enoryw]

I run keepass in firejail as a systemd service and on occasion the service fails with:

Access error: uid 1000, last mount name:/ dir:/run/user/1000/gvfs type:fuse.gvfsd-fuse - invalid read-only mount

Any ideas? It only sometimes fails, so there is some sort of race condition. I already added an After=gvfs-daemon.service. Here's the full service:

[Unit]
Description=KeepPassXC - password manager 
Documentation=https://keepassxc.org/docs/KeePassXC_UserGuide.html
After=graphical-session.target gvfs-daemon.service gvfs-metatdata.service ssh-agent.service

[Service]
Type=simple
ExecSearchPath=%h/bin:/usr/local/bin:/usr/bin
ExecStart=keepassxc

[Install]
WantedBy=graphical-session.target