We currently have an issue regarding the initiation forms of list workflow 2013.
We are able to reproduce it with very few steps :
The publication of the workflow has succeeded, because the content of the workflow is updated. However, the Initiation Form has not been modified.
We tried this with several types of fields.
We tried to delete the fields in the initiation form.
We have this issue on two different tenants, on new workflow as well as old ones (on which we have done modifications in the Initiation Form several times without any issue in the past).
We have tested with three different accounts and computers.
Nothing seems to work : when we open again SPD, the Initiation Form has returned to its initial configuration.
The problem is not present on a Site Workflow 2010 (presumably because the initiation form isn't ASPX but XSN).
Any idea or suggestion would be welcome !