Follow the exact rack-adjustment instructions. Some mechanisms require unloading or a particular two-sided movement, so forcing a loaded basket is unsuitable.
Understanding this situation
A rack held unevenly can affect clearance and its intended connection or support. A height-adjustment feature does not mean every heavy mixed load can be lifted safely in place.
A useful next step
Use the documented method with the machine stopped and protect fragile items. If a latch or wheel is damaged, seek the correct repair rather than wedging the basket level. Check the final position before starting a programme.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.