When theres two mods that both use Cardinal-Components-API and one of them gets removed, the other mod will still have Cardinal-Components-API, and it will try to deserialize the other mods components. This causes a bunch of warnings, saying it's unable to deserialize components in the logs. The warnings don't disappear after loading the chunks or entities that had the components in again.

Sorry for the delayed response - the warnings were supposed to disappear after the first load, I'll have to see why that is not the case.