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Director Clip Regeneration Fails with Float/BFloat16 Dtype Mismatch
What happened?
When regenerating individual Director clips with LTX, the rerun reaches Encoding Prompt and then crashes in the Gemma embeddings connector with: RuntimeError: mat1 and mat2 must have the same dtype, but got Float and BFloat16. The model, image, audio/vocal stems, and pipeline all load successfully before the failure.
I’ve encountered the same Float/BF16 error previously when regenerating with LTX 2.3, and now with LTX 2.5, so it appears to be a recurring Director rerun/regeneration dtype handling issue, rather than something specific to LTX 2.5.
Steps to reproduce
- Use Director mode to make clips..
- Go to Dashboard.
- Click regenerate on a clip to try and regenerate it.
Your system (OS / GPU / RAM / VRAM / etc.)
Win 11 Pro / Nvidia 5090 32GB vRAM / 64GB DDR5 / NVMe v4 storage / Intel 285k CPU.
Logs / full error output
Paste the full log output here
1. **The exact error line**
`RuntimeError: mat1 and mat2 must have the same dtype, but got Float and BFloat16`
2. **The few lines showing where it fails**
especially:
`Encoding Prompt`
`embeddings_connector.py`
`attention.py`
`gate_logits = self.to_gate_logits(gate_input)`
`F.linear(input, self.weight, self.bias)`
3. **The model load lines**
showing LTX and Gemma loaded:
`ltx-2.5-22b-distilled...`
`gemma4-12b-ltx-v1...`
4. **The rerun context**
`rerun_pipeline_clip_video`
`_rerun_clip_video_impl`
Replies (0)
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