Hi! What I can see from the photo that you have many routing conflicts where signals crosses eachothers and therefore shorts other signals to eachothers. I guess that is what you mean, shorting tracks to eachother? Maybe set your project as public so that we can see what is the real problem. You have also top layer switched off, no eye symbol in front of the top layer. So, move those signals that crosses/shorts other signals to top layer. Regards, Markus Virtanen HW / Electronics Designer

Correct, shorting track to each other. I have publish the project. So you can help me [https://oshwlab\.com/mwesiyadi/30\-holand\-lift\_copy\_copy](https://oshwlab.com/mwesiyadi/30-holand-lift_copy_copy)

Hi! I opened the project. Wow, this is a big project and a large PCB! I assume that the routing was made with an autorouter? It is quite weird that an autorouter routes track so that it shorts signals together like this :-( There is two fixes what I can see here. 1) Manually route those tracks that are shorted together 2) You did not used all 4 layers to route your signals, only top and bottom. Change autorouter to use all 4 layers ps. I got this PCB routed with 4 layers and no trace conflicts, just had to put the correct settings before pressing run. Failed to route 37 signals :-(  Regards, Markus Virtanen HW / Electronics Designer

I assume that the routing was made with an autorouter? _Correct, using local router_ It is quite weird that an autorouter routes track so that it shorts signals together like this :-( There is two fixes what I can see here. 1. Manually route those tracks that are shorted together, Unfortunetely, PCB was ready. I didnt double check because this is very fast project. So, I need cut all short track today :( 2. You did not used all 4 layers to route your signals, only top and bottom. Change autorouter to use all 4 layers. I'm still amatuer. So, I kept in 2 layer because easy to track by eye after PCB ready. Is it bug on autorourer?

"Is it bug on autorourer?" EasyEDA actually say that the Autorouter is not good enough: In: [https://docs.easyeda.com/en/PCB/Route/index.html#Cloud-Auto-Router](https://docs.easyeda.com/en/PCB/Route/index.html#Cloud-Auto-Router) it says: _Cloud Auto Router_ _For some simple or prototype PCBs, you may want to use the auto router function to save time. Layout is a time costly and dull job. EasyEDA spends lots of time to provide such a feature and it is loved by our users._ _Before using the auto router, you need to set the board outline for the PCB._**_Auto router is not good enough! Suggest routing manually! You can use “RoundTrack(Walk Arroud)” option to route tracks, via right-hand panel - Routing Conflict._** and in: [https://docs.easyeda.com/en/PCB/Route/index.html#Local-Auto-Router](https://docs.easyeda.com/en/PCB/Route/index.html#Local-Auto-Router) it says: _Local Auto Router_ _EasyEDA suggest that using local auto router rather than using the cloud server, because when many users using cloud server, the cloud auto router will fail. _ The problem of tracks crossing and therefore shorting has been reported some weeks ago.

I'm always used local autorouter. I found another same track in different route on top layer. So, I just cut tracks on bottom layer and don;t need make wire jumper. Looking autorouter made double route on top and bottom.

Hi! I rerun the board with a local autorouter and chose all 4 layers. And I did got shorted ttracks :-(  So, yes there is a bug in the autorouter. It either routes the PCB unfinished, fails to route certain signals or shorts tracks. -Markus

Hi Markus, Thank you for trying reroute. So, I have comparison.

I try again and again and short and ashort. This is serious bug. Why one million engineers don;t know it?

Hi mwesiyadi! I sent you a PM if you are interested to hire me to do a manual routing for your PCB Regards, Markus Virtanen HW / Electronics Designer