The Irish Horseracing Regulatory Board will further review Philip Byrnes' final-flight unseat from Redwood Queen at Wexford on Wednesday evening.
Trained by Byrnes' father Charles, Redwood Queen was sent off a 13-2 chance for the opening Wexford Claiming Hurdle over two miles and a furlong.
The duo seemed to have the measure of 1-3 favourite Beacon Edge coming down to the last, but Byrnes appeared to become unbalanced and was unseated jumping the hurdle, allowing Beacon Edge to cruise to a 22-length win.
The incident was examined by the Wexford stewards, with the report stating: "Having viewed the recording of the race and considered the matter, the raceday stewards took no further action."
However, the IHRB confirmed on Thursday morning that the incident will be examined again.
An IHRB spokesman said: "We note the position of the raceday stewards following their review of the incident. I can confirm the matter is down for review by an IHRB senior racing official."
