Wave Ocean Trasmission Holes

[RiccardoT99]

Hi, I'm rendering an Ocean Wave in Houdini but in the top part I have this issue, I've checked the channels and the problem comes from the indirect transmission,

If I render it with a simple Surface Standard Material without transmission there are no holes

I've tried so far
-to increase the Trasmission Ray Depth from 8 to 12 but nothing changes
-to change HDRs
-render it without displacement
but nothing changes and I really don't know what to try next

Do you guys know what might be the cause of it?