Multicellular organism refuses to engulf past a limit

[AnthropocenianAge (𝒜𝓇𝓉𝒽𝓇𝑜𝓅𝓁𝑒𝓊𝓇𝒶 𝓌𝒶𝓃𝓉𝓈 𝓉𝑜 𝑔𝒾𝓋𝑒 𝓎𝑜𝓊 𝒶 𝒽𝓊𝑔!)]

Welcome, @Facethief! As others have already mentioned, you probably hit the storage cap of a specific cell, not the total storage capacity of all cells. Have you already tried increasing individual cell storage capacity with Vacuoles?

[aah31415 (The maker of SitF, Radiostrocity, The Lifenote and TGBing; The Second Ascended...; And just maybe a security warning come alive...?)]

Judging from the fact there’s been many bugs relating to the lead cell in multicell and this bug too seems to involve just one cell’s data being used for a whole organism, this could be it.