Bug description
This issue appears to be related to the previously reported #13687, which was partially addressed in #13694. However, this specific error seems to still trigger within nested Replicators with groups (not sure if really related). Apologies for the number of closely related issues, our setup makes heavy use of deeply nested replicators 😅
I’ve attached the relevant replicator / blueprint configuration to make the issue reproducible.

How to reproduce
page.zip
Logs
{
"message": "Undefined array key \"cards_slider\"",
"exception": "ErrorException",
"file": "statamic/cms/src/Http/Controllers/CP/Fieldtypes/ReplicatorSetController.php",
"line": 91
}
Environment
Installation
Fresh statamic/statamic site via CLI
Additional details
No response
Bug description
This issue appears to be related to the previously reported #13687, which was partially addressed in #13694. However, this specific error seems to still trigger within nested Replicators with groups (not sure if really related). Apologies for the number of closely related issues, our setup makes heavy use of deeply nested replicators 😅
I’ve attached the relevant replicator / blueprint configuration to make the issue reproducible.
How to reproduce
page.zip
Logs
{ "message": "Undefined array key \"cards_slider\"", "exception": "ErrorException", "file": "statamic/cms/src/Http/Controllers/CP/Fieldtypes/ReplicatorSetController.php", "line": 91 }Environment
v6.0.0Installation
Fresh statamic/statamic site via CLI
Additional details
No response