Earlier, projects were not appearing on the project list page. At that time, I edited the URL after the '=' sign, replacing projlistpage with projtable, and refreshed the page — after which the created projects started appearing.
For example:
https://enigmaaxis.sandbox.operations.eu.dynamics.com/?cmp=abc&mi=ProjTable
Now, the issue is that in the Budget fast tab, when the toggle 'Use alternative project for budget verification' is turned ON, the 'Alternative project' dropdown does not display the parent project list.
This issue is not occurring in our second entity — both instances have the same version and configuration.
We create a parent project, and the sub-project uses the budget from the parent project.