Form sets keep disappearing

Is there a limit to the amount of form sets because when I add additional formset they seem to be created fine then in a few minutes disappear from the list?

Hello @Jeremiah_Latour,

Can you see form sets in the designer?
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Can you open the form set in the browser? E.g. the link to the Edit form in the form set is the following:
{SiteURL}/SitePages/PlumsailForms/{List Name}/Item/{FormSetID}/EditForm.aspx?item={ItemID}

You can find the FormSetID at the bottom left in the designer

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