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The Markov Functional Adjustment type Kahale Interpolation is blocked by Deriscope because it has been observed to cause Excel to crash.
It is still possible to configure the Markov Functional model to allow processing of the Kahale Interpolation adjustment at your own risk.
Click on download to download an xml file that contains an Excel formula that demonstrates this issue.
You may then reproduce the issue in spreadsheet by clicking on Go -> Load Excel Formula from Text File or one of its variations and choose the xml file downloaded in the step above.