API issues on the 1st day of each month

Whenever new patrons subscribe on the first day of each month, they can’t get access to the content on my site, that uses Patreon API.

They can see content on our Patreon page, but not on the site.

API version is v2

It happens every time for the last six months.

I can see that API returns wrong “amount of cents” for those users.

What should I do to solve it?

I should notice that the problem disappears if users wait for several days, but I want to fix it anyway because sometimes they want to get a refund because of that problem.