exporting Spreadsheet Book does not work properly.

Version 2.1.1 (i used libs from zssapp.war 2.1.1):
formulas in not visited Sheets (client side) are not evaluated.
depending on setPreloadColSize / setPreloadRowSize formulas in not visible section are not evaluated too.

Version 2.3.0 (i used libs from zssapp.war 2.3.0):
formulas in not visited Sheets (client side) are not evaluated.

on both versions if we visit the sheets(client side) or scroll to (loading) the not visible section the export work fine.

any workaround to solve this so that exporting whole book evaluate all Formulas on all sheets?

In attachment simple project demonstrate this behavior.

Thanks.