Yup, it's back again. You should be familiar with this error from January. It's a lot easier to replicate though, you just gotta fire the Dodgson Pattern "Liberator" MBT's 152mm Electrothermal-Chemical Battle Cannon and then this error comes up. And then when I log back into my character, I'm there with the tank as if nothing happened.
Oh, and by the way, both MGs work perfectly fine. It's just the ETC cannon that's faulty.
The M1A7 Abraham is fully functional, so no need to worry as far as bugs are concerned.

I've attached a snippet of my previous session's log file which I believe may be related to the error.

15:52:15.985] [Error] Could not load image asset '/vehicles/esc_unitan_liberator_battletank/esc_unitan_liberator_battletankbodyb.png', using placeholder default.
(AssetException) No such asset '/vehicles/esc_unitan_liberator_battletank/esc_unitan_liberator_battletankbodyb.png'
[15:52:15.986] [Error] Could not load image asset '/vehicles/esc_unitan_liberator_battletank/esc_unitan_liberator_battletankbodyb.png:hull.undamaged', using placeholder default.
(AssetException) No associated frames file found for image '/vehicles/esc_unitan_liberator_battletank/esc_unitan_liberator_battletankbodyb.png' while resolving image frame '/vehicles/esc_unitan_liberator_battletank/esc_unitan_liberator_battletankbodyb.png:hull.undamaged'
[15:52:16.560] [Info] 0.166667
[15:52:17.881] [Info] 0.25
[15:52:17.884] [Info] 0.25
[15:52:37.045] [Error] Exception caught in client main-loop
(JsonException) Cannot convert from array to string
[0] 7ff63133a213 Star::captureStack
[1] 7ff631338f9e Star::StarException::StarException
[2] 7ff6312e24c6 Star::Json::toString
[3] 7ff63157705a <lambda_7104622dea02b3b0e484b82c0dd81c7d>::operator()
[4] 7ff6313412c6 Star::AnimatedPartSet::forEachActiveState
[5] 7ff631588947 Star::NetworkedAnimator::update
[6] 7ff63181850f Star::Vehicle::update
[7] 7ff631843648 <lambda_9fc580ae40b93070d912cafafa15880e>::operator()
[8] 7ff631483846 Star::EntityMap::updateAllEntities
[9] 7ff63185c15b Star::WorldClient::update
[10] 7ff6317c69bd Star::UniverseClient::update
[11] 7ff631285da7 Star::ClientApplication::updateRunning
[12] 7ff63128473d Star::ClientApplication::update
[13] 7ff631a4d4d1 Star::SdlPlatform::run
[14] 7ff631a4d68d Star::runMainApplication
[15] 7ff631287731 WinMain
[16] 7ff631c307af __scrt_common_main_seh
[17] 7ff856757374 BaseThreadInitThunk
[18] 7ff85855cc91 RtlUserThreadStart
[15:52:37.070] [Info] UniverseClient: Client disconnecting...
[15:52:37.110] [Info] Client received world stop packet, leaving: Removed
[15:52:37.113] [Info] UniverseServer: Client 'Felix Yannick' <1> (local) disconnected for reason:
[15:52:37.118] [Info] UniverseServer: Stopping idle world CelestialWorld:283674805:-52880889:-198829162:8
[15:52:37.526] [Info] UniverseServer: Stopping UniverseServer

If the information above is insufficient, I have a full log file attached in this link: https://pastebin.com/5AHwi8ZX