core: Modbus stops working after [Invalid Message] No response received, expected at least 2 bytes (0 received)

The problem

Modbus stops working after

2021-07-08 22:37:25 ERROR (SyncWorker_2) [homeassistant.components.modbus.modbus] Pymodbus: Modbus Error: [Input/Output] Modbus Error: [Invalid Message] No response received, expected at least 2 bytes (0 received)

After this all entities configured turn state to unavailable

What is version of Home Assistant Core has the issue?

core-2021.7.1

What was the last working version of Home Assistant Core?

core-2021.6

What type of installation are you running?

Home Assistant Container

Integration causing the issue

Modbus

Link to integration documentation on our website

No response

Example YAML snippet

- name: meterkast 
  type: rtuovertcp 
  host: <redacted>
  port: 1234
  sensors:
    - name: meter_main_v
      scan_interval: 10
      slave: 2
      address: 45056 
      data_type: uint
      unit_of_measurement: 'V'
      scale: 0.01
      precision: 2
    - name: meter_main_f
      scan_interval: 10
      slave: 2
      address: 45062
      data_type: uint
      unit_of_measurement: 'Hz'
      scale: 0.01
      precision: 2

Anything in the logs that might be useful for us?

2021-07-08 22:37:21 DEBUG (SyncWorker_6) [pymodbus.client.sync] New Transaction state 'SENDING'
2021-07-08 22:37:21 DEBUG (SyncWorker_1) [pymodbus.client.sync] New Transaction state 'SENDING'
2021-07-08 22:37:21 DEBUG (SyncWorker_14) [pymodbus.client.sync] New Transaction state 'SENDING'
2021-07-08 22:37:21 DEBUG (SyncWorker_2) [pymodbus.client.sync] New Transaction state 'SENDING'
2021-07-08 22:37:21 DEBUG (SyncWorker_12) [pymodbus.client.sync] New Transaction state 'SENDING'
2021-07-08 22:37:21 DEBUG (SyncWorker_13) [pymodbus.client.sync] New Transaction state 'SENDING'
2021-07-08 22:37:22 DEBUG (SyncWorker_7) [pymodbus.client.sync] New Transaction state 'SENDING'
2021-07-08 22:37:22 DEBUG (SyncWorker_9) [pymodbus.client.sync] New Transaction state 'SENDING'
2021-07-08 22:37:22 DEBUG (SyncWorker_1) [pymodbus.client.sync] New Transaction state 'SENDING'
2021-07-08 22:37:22 DEBUG (SyncWorker_14) [pymodbus.client.sync] New Transaction state 'SENDING'
2021-07-08 22:37:22 DEBUG (SyncWorker_2) [pymodbus.client.sync] New Transaction state 'SENDING'
2021-07-08 22:37:25 ERROR (SyncWorker_2) [homeassistant.components.modbus.modbus] Pymodbus: Modbus Error: [Input/Output] Modbus Error: [Invalid Message] No response received, expected at least 2 bytes (0 received)

Additional information

No response