You are on ECC 6.0 EHP7 or EHP8?
Take into consideration massive updates for the SP Stacks of 09/2020 (EHP8:SP15, EHP7:SP21) in corresponding SAP Notes
for EHP8:
https://launchpad.support.sap.com/#/notes/2171334
and for EHP7:
https://launchpad.support.sap.com/#/notes/1737650