DXF with KiCAD is an issue however.
Here a DXF made with Solid Edge 2023 … it had to be identical to he PCB you already saw.
Instead look how destroyed is and even out of size (look in the corner the real PCB how it should be)
here also the errors KiCAD pretended to get.
Not clue with Libre Cad, I should try it but are now 6 years I don’t use it any longer … however it’s enough to see some issue should be investigated.