ftdt10

Results 2 issues of ftdt10

Uploaded [test.zip](https://github.com/realthunder/FreeCAD/files/11560642/test.zip) (test.fcstd) content is below. 1. Body > Pad > Sketch, the Sketch content is a rectangle and 4.3mm diameter circles 2. Body > Sketch001, with the Sketch001 Attachment...

https://github.com/realthunder/FreeCAD_assembly3/wiki/How-to-Handle-Large-Scale-Assembly#derived-assembly Derived assembly is not working as above. Create new Assembly002, then set property of "Assembly002 > Parts002 group > Derived From" to existing "Assembly", but the result is blank...