Puntuado con 2 de 5 estrellas

What's going on with this add-on? Most of the (Android) barcode scanning apps I try simply cannot scan the codes that Tab2QR generates. I've tried QR Code Reader from Scan (a really good one, IMO), QR Droid, i-nigma, and Barcode Scanner from ZXing Team. Only the latter of those considers them valid. The others just stare at them endlessly. Maybe I just have a bad selection of apps, but QR codes from other sources usually work just fine.