Project Workflow Task - issue with comments tab and workflow info tab

Hi,

i followed this tutorial : Develop AEM Projects and got the working package as mentioned. i installed it in AEM 6.5 and tested it with some values in it.

when i try to open the task from inbox and check the tabs "project info" "workflow info" and "comments". they aren't showing up.

when i install the same package in AEM 6.4, it works fine and all tabs are showing up.

i have followed this documentation to create our own version for our project approval and it have the same issue,

is there any other documentation for AEM 6.5 projects.

please let me know if this is a known issue and have a fix?

Thank You!