At the point of posting, I did not know term "corrupt" in this context which is why I did not find that other ticket when I searched.
The other portion of my OP pertains to worlds that do load but struggle to render. That is a separate issue.
Helen, I have access to a Mac and could help. Just let me know how.
Thanks for [Helping] but I did search, and even upon reading that other ticket I don't agree with you that they're duplicates. They might be similar or have overlapping issues, but they are not duplicates.
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