Code sniffer is passing locally with no issues at all, with the magento2 standard, but when I submit the extension, it fails the code sniffer, and the report.json is just empty.
Can you please share the description coming with the error file?
The problem is exactly this, I am failing all tests, but report.json files are like this:
Any help is appreciated. I tried everything, but still getting the same issue. All 3 fails but no reports.