lumen with virtual shadow maps rendering problem shadows

Hi

I use Lumen for the lighting with virtual shadow maps in my scene because the shadow raytracing bug with my hardware.

I use a rectlight for lighting my interior.
In my viewport all is clean but when i make a render I have problems with my shadows in certain places like angles. My shadow is cutten.

It is a mesh problem or quality shadows?
I can’t find the solution after searching the web.

can you help me?

thanks