I am having the same issue.  Have updated both Quickbooks and payroll but still not working.  I went ahead and used the forms since they say 2023 on them.  On the FL RT6, it went through electronically with a confirmation but I later received a notice from FL DOR of warning:  reported taxable wage does not equal calculated taxable wages.  

This is a major issue this late into April.  We have 60 companies that we must file payroll quarterly reports for and this causes a major delay.

Anyone have suggestions without calling Quickbooks and staying online for hours?