RepeaterField: Error: Syntax error, unrecognized expression

[Migu]

Hello,

When I use setFieldContextArray on a Repeater field via the API, I get the following error when trying to open the Repeater field:

Sizzle.error - JqueryCore.js:1:18925
Error: Syntax error, unrecognized expression: {"error":true,"message":"Field mediacljm1 is not saveable because it is in a specific context"}

Does anyone know why this happens?

Thanks!

 

$fieldgroup->setFieldContextArray($field->id, [
    'position' => $data['position'],
    'colsize'  => $data['colsize'],
    'typ'      => $data['typ'],
]);

$fieldgroup->saveContext();