This may be due to versioning issue - RevPi states the bridge version 1.2.1.0 is used for Codesys Raspberry Pi Control version 4.4.0.0 and the bridge version 1.3.0.0 is used for Codesys Pi Control version 4.6.0.0. I would try contacting RevPi to see if there is any known issues with this mismatch in versions or try updating the bridge or Codesys Pi Control versions. Let us know if this helps.