Email module detailview and listview are blank

i have configured the multiple inbound group emails now when i come to email module mail box changing option is not visible in suitecrm 7.13.2.

it is working in 7.13.0 version now i have upgraded the suitecrm. this feature is missing.

for the reference i am posting the screenshot.
can anybody please share me the solution to this issue.

thanks in advance__/__