Fast charge issue?

Does someone know why my ioniq 6 is only fast charging 120-150kW until 40% then switches to cap at 57 to max. Has been the issue for at least 3 months already.

It always kept the fast charge to at least 80% prior before it turns off.

Hyundai did replace a part in my battery when it didn’t fast charge a month ago. Now it can fast charge but stops at 40% but runs into same issue capping at 57kW for the entire duration after.