BIND 9.5.0-P2 issue

[IDM TEST]

Hello
 
 
We are currently running the BIND 9.3.2-P2 on our DNS servers (caching servers) and everything is working fine. If we upgrade to the version to (bind 9.5.0 - P2), we face many DNS resolving problems described by "Server Failed" messages on NSLOOKUP query (for any domain)
 
Do you any idea regarding this issue?
 
Regards
 
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