is :GetMarkerReachedSignal and Animation events broken?

It keeps firing more than once, and stacks each time

like first time i fires it, it only fires once, the second time, it fires TWICE at the same time the third time, it fires THRICE at the same time

and so on

this is really frustrating any possible reason why this is happening?

this guy also got the same exact problem : https://devforum.roblox.com/t/keyframe-reached-fired-multiple-times-keep-stacking/437415

Also i noticed, the animation you saved will randomly deletes its event or go back to a previous set of events if you updated your animation in the past

so sometimes my script will just stop working and i need to export my already fixed animation to the animation editor just to find that my animation events removed or changed.

script :

--Before this line, its just variables refferencing humanoid, player, mouse, and animation folder
-- loadedAnim is just a table that holds animation track loaded to humanoid


mouse.Button1Down:connect(function()
		loadedAnim[1]:Play()
		loadedAnim[1]:GetMarkerReachedSignal("Stanced"):Connect(function()
			print 'test'
		end)
end)