"The data couldn’t be read because it is missing." when opening app

[Sjmarf]

From TF feedback:

When opening the app (after it has been force quit), the feeds tab gives a generic error briefly. This occurs most of the time: The data couldn’t be read because it is missing.
Nothing appears wrong with the app itself when this occurs.

and:

Every time I load Mlem fresh or after time, I get this error. It almost feels like it has a content delay? I initially see nothing but this error then content populates.

I've seen this before at one point but can't reproduce it at the moment. I think it might be related to CodableSettings?