Fields and Groups Not Fully Saved – Limit or Bug?

Hi,

I’m experiencing an issue while creating fields and groups for opening hours using MetaBox. Unfortunately, not all fields are saved when I try to save them.

I tested this on two different WordPress installations, and the problem occurs on both.

My questions:
1. Is there a limit to the number of groups or cloneable groups that should be considered?
2. Are there any known restrictions that might affect saving?

This behavior feels like a bug since the fields are not fully saved after submission.

Thanks in advance for your support!