I reported some BAD textures on 1.22.6, in
VWR-11418
There seem to be fewer problems in more recent versions of the Release Candidate, but I am still occasionally seeing BAD textures on 1.22.10
See screenshot, BAD_texture.png
Location: http://slurl.com/secondlife/Kmadd%20Enterprise/162/57/56
Texture never fully loaded. Texure console showed BAD.
I returned to the same location today (I have not knowingly cleared my cache since then) and texture loaded fully.
Maximum Bandwidth: 500 kbps
Connection speed: approx 6Mbps
Disk Cache Size: 1000MB
Ultra graphics, 8x AA, VBO enabled
Dan Linden suggested I create a new issue to track BAD textures in 1.22:
"Dan Linden: we just need to get more data and see if there's a pattern, like video card or whatever"