Only accessories explicitly approved for that model's cleaning cycle should remain. Normal cooking heat resistance does not establish suitability for pyrolysis.
What the observation means
Rails, trays, probes and coated parts may have different restrictions. A previous oven's advice is not transferable, and a removable liner may need its own care method. The complete preparation checklist matters more than the general description 'self-cleaning'.
A useful next step
Follow the manual before initiating an otherwise appropriate cleaning cycle. If you are unsure about an accessory, obtain the correct instructions first. Do not use pyrolysis to diagnose a cooking fault, and do not force the door or handle retained accessories while the appliance is hot.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.