@patrickf4519157 I see few quick ways to fix it.
1. Check which data element or rule is feeding data for PFM variable and create a custom condition to replace "external" value with in data element or in the rule, based on the carousel click on homepage.
2. If you know using processing rules? use processing rule to define a custom condition to replace "external" values. Need to be careful as any change may have adverse impact over data collection.