i am using solidworks 2016 sp 01 on windows 2010 64 bit. until yesterday it was working fine. but now i am facing trouble with weldments command. it got very slow when i try to select sketch or weldments from feature manager design tree. it wont get selected unless the whole component edges got selected and turned into orange. this is very annoying, this is very time consuming i have to wait long even if i have to make minor corrections. also if i tried to interrupt the process the error occurred like solidworks 2016 not responding. wait or close process. please help me with this.