Error in dig 9.6.1-P2

[Sara Monteiro]

Hi,

I have this error some times in my VM in CentOS:

# dig org. ANY
;; Truncated, retrying in TCP mode.
socket.c:2486: REQUIRE((((sock) != ((void *)0)) && (((const isc__magic_t
*)(sock))->magic == ((('I') << 24 | ('O') << 16 | ('i') << 8 |
('o')))))) failed.
Aborted

but if I do the same query with +dnssec it works, does any one knows why
this happens?

Thank you for your time,
Sara Monteiro