Despite the warning being issued in September 2020, neither Network Rail nor Transport Scotland had carried out any action to makes the trees safe before. [See RAIB News item of the 6th below - RS]
(Permalink) Collision Glencarse Injury RAIB ScotRail Tree

A ScotRail driver was injured when his train hit a fallen branches despite trees in the vicinity on Scottish Government-owned land being identified as high risk to the railway eight months before, a report revealed today. [See RAIB News item of the 6th below. -RS]
(Permalink) Collision Glencarse Injury RAIB ScotRail Tree

Train collision with fallen tree near Glencarse, Perth & Kinross, 21 May 2021.
(Permalink) Collision Glencarse Injury RAIB ScotRail Tree