I have a normal sketch in a part document.
Why is it the following the case:
I have a sketch with a line and a block (square in the sketch).
When I create a new part and use derive the previous part into this part the sketched line is only available when selecting the block also.
If you deselect the block also the line disappears from the derive.
If you remove the block from the part one, the line is again selectable and visible in the derived part function dialog and can be derived again as usual.
Maybe this is a bug, and it would be great to have both functionalities.
The link to the topic is here:
https://forums.autodesk.com/t5/inventor-forum/derive-sketch-not-visible-with-block/m-p/12560903#M920...