Doing more than 5 SEARCH expressions on CloudWatch datasource I get HTTP 400 error

So I’m doing a panel with more than 5 SEARCH expression type queries and I get this error:
Error: ValidationError: Maximum number of SEARCH functions (5) exceeded status code: 400, request id: 324b74ff-b08b-4a15-8e87-ca06b80d58ce

Why is this and how can I fix it?