This comment degrades quality of low level GIFs. I tried a GIF of healthy quality which provided weird result as below:
And got some weird result as below:
During animations it shows dark background at places, for my test purpose I used https://go.0or1.ml/index.php?r=files/file/download&id=2&random_code=1K8ZukxdqNz&inline=false&security_token=G7EnjWz1ug9vmCtKsAFh
file but it gave me the following output please have a look:
I think in the above gif images the layers are transparent and they are causing some issue.
This can only work in v5.1 due to the availability of support in Ossn v5.1