animated texture goes clear 5 secs after its fully loaded?

I have a place that has animated textures on one side, the inside, of my one room shack. Well It runs through about 12 textures that I have managed to preload on a cube that stays one texture ahead of the interior of the building. I t completely eliminated that annoying transparent wall thing that happens if you don't preload the textures.

now in 1.6
after the textures are fully loaded and running smoothly suddenly the whole building turns clear for a second even if your looking at it from the outside where the textures aren't changing its like the shack disappears consistently one time per texture about 5 after being fully loaded. I have witnesses that can back me up and saw the exact same thing going on at the same time I did. I hope this is a bug or something you can fix because it makes no sense to me. Why does a fully loaded animated texture vanish and take the the not animated sides of the prim with it?

Unbelievable no response at all months have gone by, I mentioned this shortly after the 1.6 update It seemed like a minor glitch that would probably get fixed in time.
Why do textures that are definatly loaded in everyones cach suddenly switch to transparent shortly after the texture changed but definatly after it was loaded ???
Here's my sytem I have a small prim off to one side but in view of everyone it loads one texture the next one comming up,
then the interior of my shack changes to that texture
we see it change everyone sees the new texture on the wall its animated maybe at a diifferent speed then the last one ? ??
Anyway a sec or two later the walls turn clear for a half second then back to the texture that was playing before the clear part the the little cube switches to the next texture thats going to be on the walls and so on and its pretty consistent. please go to the beer eats bait shop and touch the shack, Theres instructions all round the door its pretty basic touch the button go inside and the textures change every 15 seconds
Just how do I fix the clear parts it worked great before the streaming media and well 1.6 smooth very nice what do i need to do to get it back to smooth????
Or are you gonna fix his?