The new version(20.5) update has caused performance degradation. Long loading time.

[dbs1029]

This is a problem in the latest version of 20.5v of Animate CC.

PC specifications

CPU- i7-8700 3.2GHz

GPU- RTX 2080

16GB RAM

When I copy and paste a symbol or object, a lag occurs.

From the previous version, there was a loading time when copying and pasting symbols with many original frames, but there was no loading when copying and pasting regular objects.

However, in the latest version, when I copy and paste a light symbol or a single object, a lag occurs.

After testing, the more objects in a project, the longer the loading time when trying to paste.

When copying a simple image using Alt, I have to wait too long for loading. This is very inefficient.

The video below is a video recording the experiment of copying and pasting group objects, drawing objects, and symbol objects in various situations.

Copy/duplicate drawing/object/symbol,
Frame/layer copy or duplicate, move
They all have the same loading time.

One peculiarity is that when I click on the object and use the'distribute to layer' function, the work is done immediately.

Similar to this, inserting a frame or keyframe into a large symbol or object is done immediately. (No loading)

It seems like a heavy loading occurs when you duplicate something on the clipboard.

I don't know why this suddenly happened,
We hope that optimization will be done as soon as possible.

[kglad]

if that happens with all fla files, reset your preferences. https://helpx.adobe.com/animate/using/set-preferences.html

[Torkil MB]

I have the same problem too and i have gone back too the older version of flash/Animate now (20.0.3). it's weird seeing the older version works like butter after using the up to date version of Animate for so long. 

hope this will be helpfull information:
iMAC (27-inch, Late 2012)
Prossesor: 3,4 GHZ Intel core i7
memmorie: 16 GB 1600 MHz DDR3

NVIDIA GeForce GTX 675MX 1 GB

Here is some Recording tests i did in the past when the problem occured 

1. this one i draged the frames while holding Alt so it copys the frames:
   https://i.gyazo.com/0e4c31f7ba78ec8931c9c3a2fc8b30e3.mp4
2. here i pasted in place:
   https://i.gyazo.com/7fdc55d195587d1b21d1da6cdb40beff.mp4

[Coolprinter]

Same Problem. I always like to keep all my adobe programs up to date but Animate always seems to be the exception. With every update I don't get anything new and a lot of things break 😕

I've went back to 20.0.3 and the performance is better.

PC Specs

Windows 10 Pro 64 bit

Intel Xeon E3-1230 v5

3.40GHz

16GB RAM

Radeon RX 480 

Here's video evidence of Copy and Paste being slow

https://imgur.com/uKsSUo9

[Mohanaraj]

@dbs1029 @Torkil MB @Coolprinter This issue has been addressed in the latest Animate update 21.0.1 released today. Please update your copy of Animate to the latest to avail the fix.

Thanks!

Mohan

[dbs1029]

My God, thank you so much!!!
I am so happy that this problem has finally been solved.
It now uses the latest update feature and can smoothly work with heavy project files.

Thank you again.
I love you Adobe Animate CC Technical Team XD