When we add a new field in Squidex 3.2.1, the following errror message is shown:
“Failed to add field. Please reload.”
However, the field is added to the schema.
The same bug has already been described here:
Could you please check it?
The error is fixed and pushed, but not related to the very old bug report you have linked.
You can try the latest dev tag
dev-2915. I will also create a new release tomorrow morning (German Time).
Thanks for your quick support!