PCBWay sent me this image while trying to troubleshoot my circuit board file content not showing up. I want to know if this program is available so I can download/buy it to troubleshoot my output gerber files without waiting for them to do it for me. Does anyone recognise this program, or can at least identify what it is built on? If not, I suppose the program is proprietary...
You don't need their Gerber viewer. Gerbers are used for a reason: they are standardized so it doesn't (or rather, shouldn't) matter which Gerber viewer you use.
I use DFM Now. It's a free Gerber viewer. Go File > Open Folder (Gerber/NC) and select the folder all your Gerbers are in.
You should have never sent your PCB off without viewing it in a Gerber viewer to begin with. PCB layout software sometimes does unexpected things when producing Gerber files; Often due to user error, but sometimes seemingly due to bugs.