Whenever the GURU-bug is shown on say the PD688, please take a photo of it, and note the PD688 device-version (PD_xxxx-xx), and also what Customware is loaded into it (the project GUID and which device in the project it is), and return this information to us. Depending on our findings, we may then request a support-file of the project in case it has root in the customware, or in order to be able to recreate the error at PROCES-DATA to find the cause. Naturally the content of the support-file is your private property, and we will never publish or use any part of it, without asking you first. It could be as an example in education-material or other purposes.