Color glitches in Fusion when using DaVinci Wide Gamut

Why does my footage look like this in Fusion:
https://www.dropbox.com/s/pm9pjw880q2r6 ... 7.png?dl=0

But normal in all other modes:
https://www.dropbox.com/s/l5nm7jgwq6e32 ... 7.png?dl=0

Obviously, the dynamic range is too much for the poor drone camera but that's not the problem here. If I disable the LUT in the Fusion viewer, the glitch disappears but it still obviously looks wrong. Is there something wrong about the LUTs themselves or the math used to apply them?

Maybe this?

I hope this workflow save me the issue on graphic color on fusion using the savings wide gamut color management... if you use this color management, the text+ for example aren't pure white but a little bit grey... And also all colors too...