Crash – “Signal channel is terminated and empty.”

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Description of bug

Moonbeam nodes v0.33.0 (based on polkadot v0.9.43) are crashing with the following Relaychain error.
This happens on multiple relaychain network (kusama, polkadot...)

Crash logs: moonbase_crash.log

07:21:42 [Relaychain] ♻️  Reorg on #12248369,0x2556…6c25 to #12248369,0xe211…c557, common ancestor #12248368,0x20e5…ae7c
07:21:42 [Relaychain] ✨ Imported #12248369 (0xe211…c557)
07:21:42 [Relaychain] subsystem exited with error subsystem="availability-distribution-subsystem" err=FromOrigin { origin: "availability-distribution", source: IncomingMessageChannel(Generated(Context("Signal channel is terminated and empty."))) }
07:21:42 [Relaychain] subsystem exited with error subsystem="candidate-validation-subsystem" err=FromOrigin { origin: "candidate-validation", source: Generated(Context("Signal channel is terminated and empty.")) }
07:21:42 [Relaychain] subsystem exited with error subsystem="statement-distribution-subsystem" err=FromOrigin { origin: "statement-distribution", source: SubsystemReceive(Generated(Context("Signal channel is terminated and empty."))) }
07:21:42 [Relaychain] Overseer exited with error err=Generated(SubsystemStalled("availability-store-subsystem"))
07:21:42 [Relaychain] subsystem exited with error subsystem="bitfield-signing-subsystem" err=FromOrigin { origin: "bitfield-signing", source: Generated(Context("Signal channel is terminated and empty.")) }
07:21:42 [Relaychain] Essential task `overseer` failed. Shutting down service.
07:21:42 [Relaychain] error receiving message from subsystem context: Generated(Context("Signal channel is terminated and empty.")) err=Generated(Context("Signal channel is terminated and empty."))
07:21:42 [Relaychain] Failed to receive a message from Overseer, exiting err=Generated(Context("Signal channel is terminated and empty."))
07:21:42 [Relaychain] subsystem exited with error subsystem="network-bridge-tx-subsystem" err=FromOrigin { origin: "network-bridge", source: SubsystemError(Generated(Context("Signal channel is terminated and empty."))) }
07:21:42 [Relaychain] subsystem exited with error subsystem="dispute-distribution-subsystem" err=FromOrigin { origin: "dispute-distribution", source: SubsystemReceive(Generated(Context("Signal channel is terminated and empty."))) }
07:21:42 [Relaychain] subsystem exited with error subsystem="chain-api-subsystem" err=FromOrigin { origin: "chain-api", source: Generated(Context("Signal channel is terminated and empty.")) }
07:21:42 [Relaychain] subsystem exited with error subsystem="availability-recovery-subsystem" err=FromOrigin { origin: "availability-recovery", source: Generated(Context("Signal channel is terminated and empty.")) }
07:21:42 [Relaychain] subsystem exited with error subsystem="approval-voting-subsystem" err=FromOrigin { origin: "approval-voting", source: Generated(Context("Signal channel is terminated and empty.")) }
07:21:42 [Relaychain] subsystem exited with error subsystem="dispute-coordinator-subsystem" err=FromOrigin { origin: "dispute-coordinator", source: SubsystemReceive(Generated(Context("Signal channel is terminated and empty."))) }
07:21:42 [Relaychain] err=Subsystem(Generated(Context("Signal channel is terminated and empty.")))
07:21:42 [Relaychain] subsystem exited with error subsystem="network-bridge-rx-subsystem" err=FromOrigin { origin: "network-bridge", source: SubsystemError(Generated(Context("Signal channel is terminated and empty."))) }
07:21:42 [Relaychain] subsystem exited with error subsystem="provisioner-subsystem" err=FromOrigin { origin: "provisioner", source: OverseerExited(Generated(Context("Signal channel is terminated and empty."))) }
07:21:42 [Relaychain] subsystem exited with error subsystem="candidate-backing-subsystem" err=FromOrigin { origin: "candidate-backing", source: OverseerExited(Generated(Context("Signal channel is terminated and empty."))) }
07:21:42 [Relaychain] subsystem exited with error subsystem="runtime-api-subsystem" err=Generated(Context("Signal channel is terminated and empty."))
07:22:42 juju-1b6dd3-0 polkadot[1442906]: Error: Service(Other("Essential task failed."))

Steps to reproduce

Running Moonbase alphanet (Moonbeam testnet) node: