Hello.
When mapping buildings, please make sure to align their shapes to the baseline, not rooftop, because the position of the rooftop line can change as satellite imagery is taken from different positions in space, but baseline of the building will always remain static. This is especially more pronounced the higher a building is.
In this specific edit you aligned one side of the building 248516693 to its base, but another to its roof. That's obviously not the correct shape.

What I tend to do if I can't see the whole baseline of a building is to try to map it to its rooftop to make sure the overall shape is accurate, and then move and align the whole shape to one or more visible corner. That way both the shape and positioning will be accurate.
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            Published using OSMCha: https://osmcha.org/changesets/147007103
            