qBittorrent client doesn't start automatically on TrueNAS Scale if VPN_ENABLE is set to yes

[ChapterSevenSeeds]

I recently installed this docker image onto my TrueNAS Scale box with ProtonVPN via OpenVPN. The startup runs just fine, the VPN connects properly and everything, but the qBittorrent client does not start automatically. I have to bash into the container and manually start it myself. Once I do that, qBittorrent reports the IPv4 address that OpenVPN has assigned and everything works great. Is there any reason for this?

My config looks like this:

VPN_ENABLED=yes
VPN_USER=<redacted>
VPN_PASS=<redacted>
VPN_PROV=protonvpn
VPN_CLIENT=openvpn
ENABLE_STARTUP_SCRIPTS=yes
ENABLE_PRIVOXY=no
STRICT_PORT_FORWARD=yes
USERSPACE_WIREGUARD=no
LAN_NETWORK=192.168.254.0/24
DEBUG=true

Here are the only errors I see in the logs during startup:

2025-01-25 13:02:47.416839+00:00modprobe: FATAL: Module ip6_tables not found in directory /lib/modules/6.6.44-production+truenas
2025-01-25 13:02:47.416932+00:00ip6tables v1.8.10 (legacy): can't initialize ip6tables table `filter': Table does not exist (do you need to insmod?)
2025-01-25 13:02:47.416948+00:00Perhaps ip6tables or your kernel needs to be upgraded.
2025-01-25 13:02:47.443288+00:002025-01-25 06:02:47.443088 [warn] ip6tables default policies not available, skipping ip6tables drops

2025-01-25 13:02:53.400160+00:00[info] Attempting to load iptable_mangle module...
2025-01-25 13:02:53.400175+00:002025-01-25T13:02:53.400175801Z
2025-01-25 13:02:53.401002+00:002025-01-25 06:02:53,400 DEBG 'start-script' stderr output:
2025-01-25 13:02:53.401016+00:00modprobe: FATAL: Module iptable_mangle not found in directory /lib/modules/6.6.44-production+truenas
2025-01-25 13:02:53.401020+00:002025-01-25T13:02:53.401020862Z
2025-01-25 13:02:53.401039+00:002025-01-25 06:02:53,401 DEBG 'start-script' stdout output:
2025-01-25 13:02:53.401045+00:00[warn] Unable to load iptable_mangle module using modprobe, trying insmod...
2025-01-25 13:02:53.401048+00:002025-01-25T13:02:53.401048276Z
2025-01-25 13:02:53.401840+00:002025-01-25 06:02:53,401 DEBG 'start-script' stderr output:
2025-01-25 13:02:53.401854+00:00insmod: ERROR: could not load module /lib/modules/iptable_mangle.ko: No such file or directory
2025-01-25 13:02:53.401867+00:002025-01-25T13:02:53.401867282Z
2025-01-25 13:02:53.402014+00:002025-01-25 06:02:53,401 DEBG 'start-script' stdout output:
2025-01-25 13:02:53.402027+00:00[warn] Unable to load iptable_mangle module, you will not be able to connect to the applications Web UI or Privoxy outside of your LAN
2025-01-25 13:02:53.402039+00:00[info] unRAID/Ubuntu users: Please attempt to load the module by executing the following on your host: '/sbin/modprobe iptable_mangle'
2025-01-25 13:02:53.402043+00:00[info] Synology users: Please attempt to load the module by executing the following on your host: 'insmod /lib/modules/iptable_mangle.ko'
2025-01-25 13:02:53.402046+00:00[debug] Show name servers defined for container