Hi, This error seems to occur when there is some kind of version-error present between the devices. In the issue you linked there was an issue of combining an older version of the PLC-app on the CORE with a newer version of PLC Enginieering. Which version does your PLC app on the CORE have? If it's not the latest v1.12-version I would try updating to that and see if it solves the issue. If you have already tried this I would suggest updating your working environment to v.1.18, if that's possible in your situation. Hope that helps, Daniel
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