Hi,
if a path leads to an intermediate step the path must have a selected task assignment in the „Task creation“ tab. If it‘s missing there is a warning in the Portal and the task assignment has to be defined.
This commonly occurs e.g. when a new intermediate step is added and connected with an entry path or when deleting a flow control after connecting the existing path leading to the flow control to an intermediate step.
To minimize this kind of error and turn development even more efficient I suggest to mark such a path to an intermediate step e.g. with a red exclamation mark in the beginning/middle/end of the path. A warning could even prevent saving the process until all such paths have a task assignment. This is already done e.g. when an advanced configuration has not been entered after adding a choice form field.
Kind regards
Sébastien