It may occur that 'page number' and 'page count' values will only be displayed as number '1' when burn-in fields are enabled on TIFF images that where created during a production run.
There is a problem where the [docprop:pagenumber] and [docprop:pagecount] fields will only display the value '1' if multi-page TIFF images are created as output and the fields are configured to be displayed in a custom format with static text., such as:
[docprop:pagenumber] of [docprop:pagecount]
Pagenumber and pagecount can be used in custom formats, however only when single-page TIFF output is configured otherwise they can only be configured as a single field in a burn-in location on a Multi-page TIFF page.
3.7 SP1; 3.7 SP2; 3.8