Hi, I'm quite new to EasyEDA and was quite happy with it, at the point to place the first order for my first project. Until yesterday evening, all went fine, drawing the schematics and importing it to PCB view, updating the schematics and importing to PCB, auto-routing and so on. I left my browser with a good schematic and good PCB yesterday evening, all was fine, just a slight change pending to replace one regular pad to another less generic item. All was saved and nice but unfortunately, no backup taken. This morning, I've replaced the last regular PAD to a CONN-TH_6037 component - nothing more. Since then, impossible to import the changes to PCB view, whatever I can try finishes with the following error about GND line (much more links than the change I've done and not related with it). Whatever I try, I don't have any progress and I stay stuck. \- Tried to revert all my changes since last yesterday updates =\> Failled/Nothing better \- Tried to close all other pending projects =\> No change \- Tried to remove all recent changes related to GND line =\> Nope  On component view (60 items), no GND out there.  On nets view (52 items), a single GND is present, as expected.  The details show, as expected for a ground line, many connections for netflags and regular pins (no duplicate on pins)).  Any suggestion to revert to a normal situation and recover my actual (yesterday's) PCB, what is (was) just fine ? Regards - Hervé