Nope, didn't do anything with my flash drive, just the server upgrade. I can see files on my system:
root@Tower:/boot/config/plugins/dockerMan/templates-user# ls
my-EmbyServer.xml my-binhex-plex.xml my-calibre.xml my-jackett.xml my-radarr.xml.bak
my-EmbyServer.xml.bak my-binhex-plex.xml.bak my-calibre.xml.bak my-jackett.xml.bak my-sonarr.xml
my-FileBrowser.xml my-binhex-qbittorrentvpn.xml my-couchpotato.xml my-mariadb.xml my-sonarr.xml.bak
my-FileBrowser.xml.bak my-binhex-qbittorrentvpn.xml.bak my-couchpotato.xml.bak my-mariadb.xml.bak my-swag.xml
my-NginxProxyManager.xml my-binhex-radarr.xml my-deluge.xml my-nextcloud.xml my-swag.xml.bak
my-PlexMediaServer.xml my-binhex-radarr.xml.bak my-deluge.xml.bak my-nextcloud.xml.bak my-vaultwarden.xml
my-PlexMediaServer.xml.bak my-binhex-sonarr.xml my-duckdns.xml my-plex.xml my-vaultwarden.xml.bak
my-binhex-delugevpn.xml my-binhex-sonarr.xml.bak my-duckdns.xml.bak my-radarr.xml
root@Tower:/boot/config/plugins/dockerMan/templates-user#