(Small red spot occur, as shown in the screenshot).
Diagnosis 1: You might not have vdraw convertor properly installed
1. Download VDraw Converter
2. Uninstall old vector draw convertor file (if it exists).
3. Install the latest one.
Diagnosis 2: that particular DWG file is corrupted. Other DWG file no problem.
You may want to save it in DXF or older version of DWG to workaround the problem.
Diagnosis 3: The machine just won’t open any DWG file no matter what
If all else fails, just save it in DXF file and you should be able to open.
