I think it's just missing from the requirements.txt
Traceback (most recent call last):
File "C:\SD\ComfyUI\nodes.py", line 1994, in load_custom_node
module_spec.loader.exec_module(module)
File "<frozen importlib._bootstrap_external>", line 940, in exec_module
File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
File "C:\SD\ComfyUI\custom_nodes\Comfyui_CXH_joy_caption\__init__.py", line 5, in <module>
from .florence_nodes import CXH_DownloadAndLoadFlorence2Model,CXH_Florence2Run
File "C:\SD\ComfyUI\custom_nodes\Comfyui_CXH_joy_caption\florence_nodes.py", line 9, in <module>
import matplotlib
ModuleNotFoundError: No module named 'matplotlib'
Cannot import C:\SD\ComfyUI\custom_nodes\Comfyui_CXH_joy_caption module for custom nodes: No module named 'matplotlib'
I think it's just missing from the requirements.txt