I consistently see message - how do I resolve this ?

Posted under APEX but possibly an ORDS question.
customer managed ORDS against ADB-S.
DB = Oracle Database 23ai Enterprise Edition Release 23.0.0.0.0 - for Oracle Cloud and Engineered Systems
Version 23.9.0.25.08
custom ORDS = 25.2
apex version_no = 24.2.7
as ADMIN I have tried both 24.2.0 and 24.2.7
begin
apex_instance_admin.set_parameter(
p_parameter => 'IMAGE_PREFIX',
-- p_value => 'https://static.oracle.com/cdn/apex/24.2.0/' );
p_value => 'https://static.oracle.com/cdn/apex/24.2.7/' );
commit;
end;
I have restarted ORDS
https://static.oracle.com/cdn/apex/24.2.7/apex_version.txt displays ( so I assume is available )

I think I had this problem before - but cannot find obvious solution, apologies in advance if I am missing the wood for trees.
References : https://blogs.oracle.com/apex/post/running-customer-managed-ords-on-autonomous-database-heres-how-to-get-ready-for-apex-211-upgrade
https://blogs.oracle.com/apex/post/announcing-oracle-apex-static-resources-on-content-delivery-network
How to Switch APEX to Use Oracle APEX Static Resources on Content Delivery Network (CDN) (Doc ID 2817084.1)
https://www.oracle.com/tools/downloads/apex-downloads/
