Corrupted object files on linkage using qbs

I noticed that in latest QtC 3.2 (win7), after cancelling build (or
build failed during compile errors), rarely i get "Invalit or corruped
object file" linker errors.
Toolchain MSVS 2010, compiling project with Qt 4.8 lib. I am using qbs
and this toolchain past last year, but such errors appeared (i noticed
these for 5 times already).
Sometimes corrupted more than one file. Timestamp checl was enabled, i
have disabled it, will see if it helps.

Further info pending.