GuardDuty Runtime Monitoring ECS Fargate ARM64

Hello,

Has someone succeeded in enabling Runtime Monitoring on ECS Fargate for ARM 64 runtime?

I have enabled Automated agent configuration. All my tasks are Healthy, but it does not insert the agent. I have given it access to the Guard Duty agent Image.
At the end, GuardDuty gives an Issue saying "Others : Unidentified issue(s), for task(s) in TaskDefinition 'XXXXX:821' . Refer documentation"
It is however working completely fine for X86 runtime. If I change the task definition to X86 and switch the container images to X86 tags everything works and the GuardDuty agent is inserted.

Has anybody seen the same issue?

Thanks, Ivan