Use case: I have created a metabox settings page in the RealHomes theme. On the settings page, there is a clonable group of fields that you can see in this screenshot: https://tppr.me/CYCJJ
The problem is: initial cloned fields are being saved with their values fine. But when the number of cloned fields increases with values in it, the settings don't get saved properly and behave strangely. Sometimes save a couple of them and sometimes don't save at all.