In ComfyUI\comfy\ldm\lightricks\embeddings_connector.py
replace
hidden_states = torch.cat((hidden_states, learnable_registers[hidden_states.shape[1]:].unsqueeze(0).repeat(hidden_states.shape[0], 1, 1)), dim=1)
with
hidden_states = torch.cat((hidden_states, learnable_registers[hidden_states.shape[1]:].unsqueeze(0).repeat(hidden_states.shape[0], 1, 1).to(hidden_states.device)), dim=1)
use --reserve-vram 4 as a argument for comfy and disable previews in settings.
FP8 Text Encoder: https://huggingface.co/GitMylo/LTX-2-comfy_gemma_fp8_e4m3fn/blob/main/gemma_3_12B_it_fp8_e4m3fn.safetensors
