The filter you have applied is based on Incident object and it wants an filter based on Process - recreate the filter on Process and switch it over.
Hope you have the attributes on the process object....
I've the same need.
I created a filter on Process about User where type = Analyst or EndUser and I applied this filter on Incident.Raise User attribut.
I got the good result, so yes this way work fine about need but get a dysfonction about the way to select by the dropdown list accross the WebDesk.
Without this filter when I fill the beggining of the raise user name, I got a short list of raise user available corresponding. This attach file Without Filter where you can see that I got a restrict number of result (no scroll bar ) and more the first selection proposed match fine with my filling.
When I enable the filter and use the same name, I got more result (8 pages with scroll bar) and the first one proposed don't match at all with my filling.
Is someone get same issue than me in WebDesk or Console ?
Thank for your help