I cannot copy and paste from one drawing file to another. when I copy items with a basepoint, I notice the following message in command prompt, SketchBook Designer data can only be saved in DWG file format and will be omitted from other file types. If I try to paste the items into another file, it says paste is invalid. I created a wblock from the items in the original file thinking I could insert the items into the other file. Inserting the wblock also creates invalid result. What is wrong with the original file I tried to copy from?
I can copy/paste from other files without problems.