What is the meaning of this error “Unable to parse JSON response for generatereporturl request: Windows Error 0x57: The parameter is incorrect”
Seeing this also. Seems to be when messing with the sort options of reports; changing sort column, direction, etc. We had an issue where after we started getting this error many of our scheduled email reports stopped going. Had to bounce webreports.
Follwoing up, only since 9.5.13… Was there a known issue on this?
In my case, the one showing this error is a Custom Copy Report, while the original copy isn’t showing it.
I think you are right when messing with the filters are the responsible for this.