Issues sending more that 64 bytes from PC

[dev-board-tech]

Hi, I implemented this design together with the hs phy, the issue is that if I send more that 64 characters to the device what is beyond 64 bytes the device will not receive it , if I send more than 128 bytes will begin randomly shift the bytes, and if I send from PC more than 256 bytes windows driver freezes and will no longer recognize the device until after a windows reboot.

The other way, if I send from device to PC everything is OK.

The same issue is with uart module and without uart module ( a echo done thru a fifo ).