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Crystal report Viewer doesn't prefill entered parameters when the refresh button is pressed

I have opened a report which has multiple parameters in the crystalviewer (launched from a Progress/OpenEdge UI). I am initially prompted for the parameters and enter them.

When in the viewer, when I press the refresh button (or run the refreshreport method) for the first time the parameter screen does not show the previously entered values, they are either blank or have the report's default value <if any>. If I enter new values and OK the screen, when I refresh again, the newly entered values are shown.

This holds true until I regenerate the report, at which point it reverts to the behaviour that the next time I press the refreshreport button the parameter values are blank (or initial value) again.

The parameter values are actually still held. I can applydefaultvalues using the currentvalue as an input, and the parameter prompt screen does show the values within a default field.

This is running against V 13.0.14. I tried against 13.0.20 and I do get the behaviour I expect, seeing the previously entered values in the parameter screen.But, I can't upgrade the end-user to that service pack in a useful timescale. Also, I can't find this problem under the known issues addressed in any of the servicepacks.

Is there any way of getting the parameter screen to show the previously entered values?

thank you

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