SegmentNew() returning null

Hi.
I rarely receive a null from the SegmentNew() function in Kcp.cs which turns into a disconnection.
The pool seems to have elements, can a null object be part of the segment collection?

`  Segment seg = SegmentNew();
  seg.conv = conv;
  seg.cmd = CMD_ACK;
  seg.wnd = WndUnused();
  seg.una = rcv_nxt;
  `
  
  Is there a way to recover from it without disconnecting?
  
  