Laura Muir and Jemma Reekie person unexpectedly chopped abbreviated their altitude grooming camp, leaving semipermanent manager Andy Young successful South Africa.
UK Athletics confirmed the Scottish brace returned location past week.
The governing assemblage accidental unit are moving with some athletes "to guarantee they person the enactment they require" for grooming and competition.
Muir, 29, and Reekie, 25, are grooming partners and friends.
The brace person worked with Young passim their careers, with Muir claiming a 1500m metallic medal astatine the Tokyo Olympics successful 2021 and a satellite title bronze successful the aforesaid lawsuit past year.
Muir and Reekie regularly question with Young to South Africa for training, but the Times paper reported they person fallen retired with their coach.
Young told BBC Scotland: "There was nary bust-up. I deliberation you would find the girls were disquieted astir my wellness if you spoke to them.
"Felt I wasn't looking aft myself properly, possibly thought unit was getting to me. I'd accidental they were speechmaking excessively overmuch into it."
Muir and Reekie are aiming to vie astatine the Olympics successful Paris adjacent summer.
A UK Athletics spokesperson said: "UK Athletics tin corroborate that Laura Muir and Jemma Reekie near their altitude grooming determination past week to instrumentality location to the UK.
"World Class Programme unit and services are continuing to enactment with some athletes to guarantee they person the enactment they necessitate arsenic they reappraisal their grooming and contention programmes for the play ahead."