Comments older than one month do not appear [Vanilla Comments]

Hi guys,
I'm using Vanilla Comments since late April, and I've just noticed today that comments more than a month old do not appear on my blog. Examples:
I've looked at multiple browsers, from different systems, and it seems like more than 30 days back the comments just don't load.
Anyone have any ideas on how to fix this?
Thanks.
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Answers
Bumping for North Americans.. anyone have a thought here?