Try leaving the end-state in the subflow without the redirect and instead do the redirect in the calling flow
SubFlow:
Code:
<end-state id="dossierrecapbeneficiaire"/>
Calling Flow:
Code:
<subflow-state id="callSubFlow" subflow="thesubflowname">
<transition on="dossierrecapbeneficiaire" to="dossierrecapbeneficiaire"/>
</subflow>
<end-state id="dossierrecapbeneficiaire" view="flowRedirect:consulterundossierbeneficiaire-flow?reference=${flowScope.objetformulaire.lePensi onne.representantLegal.beneficiaire.reference}">
</end-state>