Reached storage limit with 28 MiB data

Just got this banner that I've reached storage capacity (512 MiB, free tier) yet it's showing 29.82 MiB of actual stored data. I'm using a single branch and only have about 6 entries total between two tables. This looks like the same issue that Code Ducky ran into on 8/22. My project Id is quiet-field-31355758