I have multiple instances on my current map where a field plot completes construction smaller (at least visually) than the initial drawn plot.
In the past I think that the field was always completed prior to fencing, but this time around I completed fences before field construction was complete.
This includes a field “completing” under the minimum size (4x4) at least visually. It still selects the field when I click in the blank space.
Not sure how to check if mechanically the field is actually larger than it appears, as when you select them it doesn’t provide field size in the info.