SECURITY FAILURE Logging into JasperReport Server with HTTPS

[Ectomorph]

After getting JRS to run fine on https, i'm having issues with https. The problem starts after logging in with the log INFO message;

2;|2014-02-13 09:58:30,788 ERROR Validator,http-thread-pool-8080(4):408 - [sECURITY FAILURE context=userTimezone-Login_context, key=userTimezone, type(Timezone)=null, input=Australia/Brisbane, maxLength=100, isBlacklist=false]

and the screen displaying error 5321 contact administrator.

If I set security.validation.input.on= false then it all works, but this is not a good solution.

If I comment out the userTimezone=Alpha,Timezone,100,true,userTimezone-Login_context in security.properties then I simply get another similar validation error. Commenting this one out leads to another and so on.

Any ideas on what the issue is?

Thanks.