Alert Rule webhookdata incorrect ResultCount value

Hi, I've been using Alert rules for some time to trigger Teams messages. We process the message using the webhookdata, and evaluate some criteria based on the attribute ResultCount. Ever since the 28th May. the ResultCount has been 2, for all triggered alerts. Regardless of the actual number of results in the webhookdata. This is causing our alert to be broken resulting in messages containing System.Object[] rather than strings.

Partial of the webhookdata to help illustrate, heavily redacted so apologies, just trying to illustrate there are three rows in SearchResults but the ResultCount is 2. I've seen the same ResultCount of 2 where there are 1, 2, 3, 4, 5, 6 rows etc, so it seems ResultCount is broken.

"ResultCount": 2,
"SeverityDescription": "Critical",
"WorkspaceId": "xxxxx-xxxxxx-xxxxx-0aa8889d4e49",
"SearchIntervalDurationMin": "2880",
"AffectedConfigurationItems": [],
"AlertType": "Number of results",
"IncludeSearchResults": true,
"SearchIntervalInMinutes": "2880",
"Threshold": 0,
"Operator": "Greater Than",
"SearchResults": {
"tables": [{
"name": "PrimaryResult",
"columns": [{
"name": "subnet_trim",
"type": "string"
}, {
"name": "Cloud_Identity",
"type": "string"
}, {
"name": "Count",
"type": "long"
}],
"rows": [
["web-plan-investments", "web-QuaiAPI", 8],
["", "paymentsapp", 16],
["", "quaiapp", 42]
]
}],

Start with the supplied webhookdata example, comparing ResultCount with the number of rows under SearchResults.tables[].rows. No repository file, test, or implementation entry point is identified; the issue is complete only when the alert payload reports the actual result count and downstream message processing no longer receives the incorrect value.