There was an issue with wikipbx behavior when freeswitch passed CDR records that it could not match with any account (tenant). Now instead of returning an error to freeswitch (and jamming it up), it stores the cdr as unassociated and shows a warning on the completed calls screen. Also there is a new section in the root admin that shows unmatched CDRs.
Next will be to fix the underlying cause of why the CDRs are not matched in the first place. In my case it was happening with a call that went out of a gateway, and maybe other situations.
Fixed on *trunk only*, revision 248
You will need to apply the DB patch called patch_2010_02_11.sql in the sqlpatches subdirectory.