Skeletal Mesh Disappear on Mobile ES2 after update 4.21 ->Not bone count limit problem
Hi, I have a problem with my model. After updating to 4.21 it disappear on Android Builds and Editor preview Es2. The Bone count is 39 so it's not the bone count limit. I made an asset audit and got this.
And here is the difference between Shader5 and Es2
asked Nov 29 '18 at 01:50 PM in Bug Reports
We've received a bug report for this already. After speaking to the developer who made the change that caused this behavior, he mentions that it is intended. The change was made to avoid a crash that could possibly occur with Skeletal Meshes with more than 75 bones or more than 4 influences per vertex. As such, these types of skeletal meshes are no longer rendered in Mobile Preview. These skeletal meshes should render on ES3.1 however.
Edit: If you need to check the number of influences, I'm not sure if this is possible in the binary editor but you can use the "Character" button in the Viewport for the Skeletal Mesh editor in a Source built editor and select Detailed under Mesh > Mesh Info.
answered Nov 30 '18 at 02:07 PM
Hey guys, so I was in the similar situation, where my SK mesh wasn't showing up either, i had to count manually the number of bones i had ( I know there might have been an easier way to figure it out.. but i am a lil old school). And the solution, I found is that you have to delete the bones from your skeletal mesh in Maya (not in unreal) and make sure that they are under 75 as some one had already mentioned it. after you have done the changes, make sure the bones that you have deleted are the important ones (try deleting the ones that have no animations and no paint weights, like the tips of the fingers) and after, save the file with the same name or different name ( your choice) and re import the skeletal mesh in UE4. and that should do the trick. Hope it helps.
P.S. i know its a little more extra work... but hey at least this method works.
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