Raith scored a last minute equaliser meaning that the Gers will have to wait until Tuesday to potentially confirm their promotion.
The Light Blues went into the game knowing that if they could win and Hibernian failed to beat St Mirren, their return to the Scottish Premiership would be confirmed.
And while St Mirren did their bit - holding Alan Stubbs' men to a 2-2 draw - an enthralling game at Stark's Park saw Rovers bag a last minute equaliser which has meant that the Scottish Championship leaders will have to wait until they face Dumbarton at Ibrox on Tuesday to have another go at confirming their promotion to the top flight.
And Warburton conceded that Harry Panayiotou's goal in the dying moments left his side extremely frustrated.
"There has been a heated discussion in the changing room about their equaliser, which is fine, we will learn from it and go again on Tuesday," he told the club's official website.
With their promotion seemingly inevitable regardless of the result, it is more than likely that the frustration came from the fact that nerves appear to have become a factor in the latter stages of their games recently.
As well as being unable to see out the game against Ray McKinnon's men, they watched their 4-1 lead over Queen of the South become 4-3 last week while Falkirk came from 2-0 down with less than 20 minutes to go the week before to win 3-2.
Although it is still a matter of time before the title is wrapped up, Warburton and his squad may be becoming concerned about why they have suddenly lost that ruthless edge that has made them so brilliant for most of the campaign.