When I try to add an observation to a project that has a mandatory observation field, it usually fails because the observation field doesn’t get completely added before I click “Add to Project”. Then the field gets added but then it doesn’t get added to the project.
When a project has an optional observation field, the observation field again doesn’t get fully loaded but instead the observation gets added to the project and the observation field fails to be added.
A little confusing to understand, but I think I know what you’re saying. This seems to be more of a quality-of-life fix (since you can just wait for it to load).