Z-Image-Turbo on x86 (generic&blas) generates random color mosaics only

AMD Ryzen AI 9 365, installed huggingface_hub python package and downloaded model as per instructions in the README.
No error message, but the output image is a mosaic of colored squares, no matter the size or other options.
(flux-klein works and I'm looking into improving the automatic thread count assignment in OpenBLAS)
```
./iris -d zimage-turbo -p "a fish" --power -o fish.png
BLAS: OpenBLAS | HASWELL | 20 threads / 20 procs
OpenBLAS 0.3.31.dev NO_AFFINITY USE_OPENMP HASWELL MAX_THREADS=20
Seed: 1771424285
Loading VAE... done (0.1s)
Model: Z-Image-Turbo-6B v1.0 (zimage, 9 steps, guidance 0.0)
Loading Qwen3 encoder... done (0.6s)
Encoding text... done (11.9s)
Loading Z-Image transformer... done (0.0s)
Denoising (d=double block, s=single blocks, F=final):
Step 1/9 ddddssssssF
Step 2/9 ddddssssssF
Step 3/9 ddddssssssF
Step 4/9 ddddssssssF
Step 5/9 ddddssssssF
Step 6/9 ddddssssssF
Step 7/9 ddddssssssF
Step 8/9 ddddssssssF
Step 9/9 ddddssssssF
Decoding image... done (3.4s)
Saving... fish.png 256x256 (0.0s)
Total generation time: 151.9 seconds
```