Help with investigating the cause for blocked request

Hi,
We are subscribed to F5 Rules for AWS WAF - Web exploits OWASP Rules via AWS Marketplace and use it for our WAF config.

We see some requests are getting blocked and see which rule triggers it. However it is not clear from the log what is exactly the reason for this. I suspect it is because of the size of the body of the request.

Please help understanding the exact reason and what can we do to fix it.

Log entry:
{
"timestamp": 1693206543488,
"formatVersion": 1,
"webaclId": "",
"terminatingRuleId": "F5-OWASP",
"terminatingRuleType": "MANAGED_RULE_GROUP",
"action": "BLOCK",
"terminatingRuleMatchDetails": [
{
"conditionType": "REGEX",
"location": "BODY",
"matchedData": null
}
],
"httpSourceName": "ALB",
"httpSourceId": "",
"ruleGroupList": [
{
"ruleGroupId": "F5#OWASP_Managed",
"terminatingRule": {
"ruleId": "rule_XSS_script_tag__Parameter__AllQueryArguments_Body",
"action": "BLOCK",
"ruleMatchDetails": null
},
"nonTerminatingMatchingRules": [],
"excludedRules": null,
"customerConfig": null
}
],
"rateBasedRuleList": [],
"nonTerminatingMatchingRules": [],
"requestHeadersInserted": null,
"responseCodeSent": null,
"httpRequest": { redacted },
"oversizeFields": [
"REQUEST_BODY"
],
"requestBodySize": 49642,
"requestBodySizeInspectedByWAF": 8192
}