KM dialog not "active" by default after update to KM10

The team I support has just updated to KM 10. They are noticing the KM prompts that were active in KM 9 now must be clicked before the default button will turn blue. Is there a setting we are missing somewhere? This issue was not apparent in my testing using KM 10.

Edit: I am running Monterey. The artists with issues are on High Sierra.

After a little troubleshooting we found that adding a short pause before the Prompt makes them preview properly on High Sierra.