Each transfer changes the food's storage state and makes its history harder to track. Refreezing does not reverse time spent at unsuitable temperatures.
What the observation tells you
A portion partly used, warmed or handled may have different requirements from an untouched frozen pack. Its outside and centre can also thaw at different rates. The fact that it becomes solid again is not a safety test.
A useful next step
Remove only what is needed where practical and follow the food's thawing, cooking and refreezing instructions. Keep timing clear and seek appropriate advice when the history is uncertain.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.