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Did you pause the timer in the top-right of the screen or select Take a Break in the left-hand menu https://learn.microsoft.com/en-us/credentials/support/exam-duration-exam-experience#unscheduled-breaks-on-exams
If you took a break properly, the proctor needs retraining - please raise a case with Pearson Vue support https://home.pearsonvue.com/microsoft/contact and also with Credentials support https://aka.ms/credentials-support