Transformers has a few, mainly about graphic content being cut from the movie. There is one famous case of this being generally true (Spike swearing) but the various legends state all kinds of horribly twisted scenes have vanished. Chalk it up to bad memories and fanboys expecting too much.
Well in the case of TF85.The Rumors of some scenes are true.IE
The scene where Ultra Magnus arrives with injured Autobots and Re-enforcements who then charge the Decepticons ala Light Brigade.
Tracks,Sideswipe,Sunstreaker,Windcharger,Wheeljack ect all die violent deaths.
This was to make it clear they will not return for the next season of the cartoon.
This scene was ment to tie into the scene with Arcee pulling Windchargers body.
The only part thats rumour is that this was animated,when it was not.
Only storyboarded.
The so called scene where you see Ironhides head get blown to bits is a lie.