Hi Can you clarify your problem with images? I not really understand your problem, thanks

 when i solder on my pcb, i found out the pin no.2 and no.3 have connection. In my circuit both pin not connected. So i unsolder and check connectivity on the resister only, same have connection.  for the ner resister, the result of connectivity is not connected between all the pin

Can you tell me the part number of LCSC? Is the part pin2 connected to pin3, or only the PCB pad2 connected to pad3 of this footprint? if only this one part pin2 connects pin3, seems it is a quality issue.