Error when modifying db.m5.xlarge RDS MySQL for Performance Insights

I'm trying to modify a db.m5.xlarge RDS instance by upgrading the DB engine version from MySQL 5.6.34 to MySQL 5.6.41, and enabling Performance Insights. I see that Performance Insights is compatible with "Amazon RDS for MySQL version 5.7.22 and higher 5.7 versions, and version 5.6.41 and higher 5.6 versions".

When I try to modify the instance, I get this error:

Performance Insights not supported for this configuration, please disable this feature. (Service: AmazonRDS; Status Code: 400; Error Code: InvalidParameterCombination; Request ID: 75165480-8e15-44e8-971b-3a11d8645b71)

Any idea what's causing this?