I believe the backwall dead load is not being added to the load effects calculated in the analysis tab under Load Case DC which is used for design and footing stability checks. I found this issue in the LEAP Bridge Concrete V19 Substructure module. Later I checked the issue in the latest version of OpenBridge Designer V10.11.00.40 which includes LEAP Concrete Bridge V22.00.02.19 Substructure module and it still exists.
It would really help me out if you could provide some insight into this matter. Thank you.