nrUE: [MAC] PUCCH Error for number of bits for acknowledment

When running OAI gNB and OAI nrUE in rfsimulator mode on the same host and doing iperf TCP DL traffic test, I get a lot of "[MAC] PUCCH Error for number of bits for acknowledgment" error messages on nrUE side. It does not seem to affect the iperf TCP DL traffic although I cannot ensure it does not !