adobe animate symbol glitch, disappearing in scene

[someoneidkk]

hi! im using adobe animate for 3-4 years but i see this problem for the first time,i just reseted my pc and installed adobe animate again,but this is new, i never seen this before,when i just duplitace my layers in the folder, and this becoming,also ,when i create merged layers like symbol,and make another layer,then pasting the that i duplitaced symbol,this becoming,and my pictures are transparent png,i just working on this adobe animate glitch in 4-5  weeks but i cant solved this big problem,and btw,when i break apart my bitmaps(layers),some of layers are gone,i mean some of layers are disaappear in my scene,im 15 years old little animator but i cant solved this problem,please,help me, i have no other alternatives to animating my character,im feeling really bad,please help 😞       (and sorry if i have bad English)

[kglad]

upload to a file server a fla that contains the symbol that causes a problem when duplicated.  post a link to the fla here.

[someoneidkk]

when i share the file, a text pop up and the text is showing this; "

Correct the highlighted errors and try again The attachment's glitchy file here.fla content type (application/octet-stream) does not match its file extension and has been removed. "  i cant share file with you because this text pop up,i tried more than 6 times but it doesnt work,sorry...

[kglad]

what file server are you using?

[someoneidkk]

i didnt undertsand perfectly but im using .fla file to save my progress,i want to share .fla file but gives me that text error 

[kglad]

upload your fla to a file server, eg wetransfer.

[someoneidkk]

sorry for the late answer, here is the link, and you mean that web site?

https://we.tl/t-ikrS8lFe4o

[kglad · Accepted solution]

you had 36 3840x2160 overlapping bitmaps and lost transparency.

try this, https://www.kglad.com/Files/forums/noglitch.fla

[someoneidkk]

WHATTTT!!!???HOW DID U DO THAT????? i understand now but how did you do the all images transparent?? do you use photoshop or illustrator? or any diffferent app? AND THANK YOU SO MUCH YOU SAVED MY LIFE,GOD BLESS YOU, THANK YOU!!!! I DIDNT KNEW THAT THANKS SO MUCH

[someoneidkk]

dosyayı atmıştım ancak hata verdi,tekrar atmaya çalıştığımda yeniden hata veriyor,üzgünüm sanırım dosyayı atamayacağım...