i think the problem is Agent extension
please reinstall Agent Extension in EPO and then test it.
You have to install it again i mean EPOAGENTMETA.zip file
for this reason refer to Menu-->Software-->Extension-->and then Click on Install Extension
hope it can be useful for you.
Software manager not showing EPOAGENTMETA.zip file when we click on epo agent 5.0
Thanks for the guidance, the above mention issue has been resolved. Now mcafee epo agent 5.0 deployed from epo console.