Starting with the release of Strategy ONE (March 2024), dossiers are also known as dashboards.
SYMPTOM:
In Strategy Library 10.11 for iOS, the image-based thresholds cannot be rendered as correct image in Dossier with Mapbox visualization.
STEPS TO REPRODUCE:
1. Create a Dossier with Mapbox visualization, right click on Metric in Color By and define image-based thresholds:

2. Run the Dossier in Library note that the image-based thresholds could be rendered correctly:

3. Run the Dossier in Library 10.11 for iOS, note that the thresholds are rendered incorrectly (arrows are not rendered):

CAUSE:
This is a known issue in Strategy Library 10.11 for iOS
ACTION:
Currently this issue is still being reviewed for feasibility by our Technology team and it is not scoped for any upcoming scheduled Strategy release.
Article Reference Number KB441019