Gigginstown’s number one jockey Davy Russell was switched to Rogue Angel after Road To Riches was taken out of a Grade Three novice chase.
Rogue Angel, trained by Mouse Morris, finished third behind Sizing Rio.
The Cork stewards referred the issue to the Irish Turf Club, who adjudged there was no breaches of the rules of racing.
The matter is unrelated to the withdrawal of Gigginstown’s Devils Bride at Fairyhouse last week.
Trainer Willie Mullins was fined €200 and the horse prevented from running for two days after he was taken out of the Premier Jump Weekend Hurdle due to a change of going.
The local stewards felt the ground had not altered enough to justify the decision.
Devils Bride was prohibited from running in Thursday’s INH Stallion Owners EBF Novice Hurdle at Thurles, for which he would have been a leading fancy, but was pulled up three days later in the “Monksfield” Novice Hurdle at Navan.
Gigginstown have appealed the stewards’ decision to penalise Mullins.