Hi @XavierColombel,
I guess you followed the documentation on upgrading, do you have any logs on your liana ?
Can you compare your previous forestadmin-schema.json with the new one ?
On you first screen click on the line that start with at a.value just after the at addQueryTimezone and put a breakpoint there.
Is this.get('field.referenceModel') returning something ?
Hi @XavierColombel what i can seen on your project, the field facture doesn’t have any reference. I don’t really understand how can you set a BelongsTo select widget.
I think you can fix your issue by select another widget in field settings.