I have a repeater with one line existing.
The field "évaluation mutualisée" has disable conditions with a "or" operator. And two of them are externals. One of these two conditions disabled the field.

When I click on the "add" button in the header (1), the first line appears, but the external disable conditions is ignored.
When I click on the "add" button on second line (2), the third line appears and the external conditions are correctly evaluated.

Two behaviours for the same action.