Check for a cloth fibre, residue or a fold accidentally displaced during wiping. Cleaning should not require stretching the gasket or pulling it out of its mounting.
What the observation tells you
A recently wet surface can also make contact look different. This is separate from a split or permanently deformed section. Avoid heating the seal with a hairdryer or applying oil in an attempt to reshape it.
A useful next step
Dry the accessible surface as instructed and inspect normal gentle closure. If a section remains detached or misshapen, photograph its position for a model-specific assessment rather than continuing to manipulate it.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.