Subpanel not dispalye

Hello Experts,
SuiteCRM :Version 7.11.4
Sugar Version 6.5.25 (Build 344)

In the lead record Calls, task, meeting subpanels not displaying.
In relationship m-m relationship by default is exists. but sub-panels not display.

Thanks,

Check

Admin / display modules and subpanels

Hello pgr,
I have already added this but Call not displayed under lead module.

Is this an upgraded system? Do you have any customizations or add-ons that might be breaking this?

Do the subpanels appear in Studio/Layouts?

Please also try a Admin / Repairs / Repair relationships

And check if there’s anything in your logs.