Couldn't find 2f commit messages in the message log for building a seal

[charalarg]

Hello everyone,

I am running a 4-node hyperledger sawtooth network with pbft consensus. After a while the network is not processing any new transactions and the pbft component constantly prints the following error:

Couldn't find 2f commit messages in the message log for building a seal

Does anybody know any possible reason why there are so many faulty nodes that the primary node can't agree to commit the transaction?
The production environment is stuck two days now because of this ERROR.

[DDDmen01]

Adding to question! Same problem

[ryanwwest]

Same issue