Hi all, slightly late to the party, but to add to the comments above…
This module started out using the Get Athlete Stats endpoint in the Strava api to generate the table. This continues to be the case today, but as noted above, this api does not include private activities.
In chart mode the module uses the List Athlete Activities. Providing access to private activities is granted when authorising the module, these activities will be included.
I’m considering removing the use of the Get Athlete Stats endpoint and aggregating the data from the List Athlete Activities endpoint within the module. This would resolve this problem and allow more activity types to be supported.
In the meantime, the options for displaying private activities are to use chart mode (and grant access during authorisation) or use are to use the forked module.