When I joined to a group chat room, we have set discussion history along with initial presence stanza as since attribute and values passed is in UTC time. When I received offline messages, I found that all other messages except messages send on today is missing <nick> </nick> field
• Offline messages received, which was sent Yesterday
<message type="groupchat" from="xenon@conference.test.com/shalon/1426597418" to="635598175791475125@test.com/1426656550472"><subject>adata</subject><body>Hi how are you</body><delay xmlns="urn:xmpp:delay" stamp="2015-03-17T13:03:57.031Z" from="635615923747075289@test.com/11724ff5"/><x xmlns="jabber:x:delay" stamp="20150317T13:03:57" from="635615923747075289@test.com/11724ff5"/></message>
• Offline messages received, which was sent Today
<message id="sGx3z-210" to="635598175791475125@test.com/Android1426656550472" from="xenon@conference.test.com/adminone/1426651927200" type="groupchat"><subject>adata</subject><nick xmlns="http://jabber.org/protocol/nick">adminone</nick><body>Good morning</body><active xmlns="http://jabber.org/protocol/chatstates"/><delay xmlns="urn:xmpp:delay" stamp="2015-03-18T05:12:12.924Z" from="635598175791475125@test.com/1426651927200"/><x xmlns="jabber:x:delay" stamp="20150318T05:12:12" from="635598175791475125@test.com/1426651927200"/></message>
Please help me whether I'm missing some configuration settings or is there any solutions where I can overcome this.