False positive upload image please help

I just simply uploaded an image that got blocked by WAF F5 (SaaS - AWS WAF F5 Web exploits).

I already contacted and worked closely with AWS support that they confirm is blocked by F5 rule.

Can you or anyone please help to fix this issue?

Log for failed upload file:

"terminatingRuleId":"eb2e863a-3067-4ea3-a440-4cefe77075c7","terminatingRuleType":"GROUP","action":"BLOCK","terminatingRuleMatchDetails":[],"httpSourceName":"ALB","httpSourceId":"XXXXXXXXXX","ruleGroupList":[{"ruleGroupId":"eb2e863a-3067-4ea3-a440-4cefe77075c7","terminatingRule":{"ruleId":"f7a9e257-c291-40e1-82f9-d00eefc191cf","action":"BLOCK", {"name":"Content-Length","value":"8072"}