Certain flexible-hob programmes assign different power levels to sections of one area. Moving the pan can intentionally select another level.
What the observation means
This differs from a faulty pan sensor or random power change. The section layout and starting levels are model specific.
A useful next step
Read the function guide and keep the cookware within approved positions. If you want a fixed level, use the normal control method described by the manufacturer. Do not assume the same setting follows the pan when a move-based programme is active.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.