Filled region error

[jacob.small]

I recall seeing something about this but I can’t find it now. Out of curiosity, what is your end goal here? Looks like it might be masking for interior elevations. I’ve done simiar by creating a large C by removing one side of both the inner and outer loop and closing the gaps with two angled lines. I edited these manually, but you could try and automate the edit as shown here:

I want to edit the sketch of an existing floor or slab

Btw we do have partial control over an element’s sketch, but extracting the sketch curves is costly. Once we get the correct sketches, we can move them around: [image] delete any internal loops: [image] or (if you’re really adventurous), the external loop: [image]