We have upgrade Sitecore solution from 9.1 to 10.11, as part of upgradation we had upgraded Sitecore databases and solution. We have around 80 plus sites and we are using sxa.
Let me describe about my issue , we have header logo component being used across all the sites, the problem here this header component is working for few sites and few sites its not. When keep debug on not working sites , getting returning parameter value set to null because of this the component is not rendered.
When go to final layout section of the component and make small change on it and then component is rendering fine , we are assuming this could be cache issue. We have developed all the components using glass mapper.