Deformed low poly hand in Packaged Builds

[getnamo]

Reference https://forums.leapmotion.com/t/deformed-hand-after-packaging-unreal-engine-project/7329

Note to self: Appears recent changes in rigging have broken something in packaged builds

[JG-LY]

@getnamo Do you have any idea when the issue will be addressed? Is there a feasible workaround (e.g., downgrade the plugin version or Unreal Engine version)?

[getnamo]

I'm looking to address this in about a week. In meantime you can try earlier releases here: https://github.com/leapmotion/LeapUnreal/releases to see if they do not have the issue.

[JG-LY]

Did you already get a chance to address this issue?

[michela]

Has anyone found a workaround?

With UE4.20.2 I've tried 3.0.0rc2 - same issue and 2.17.1 - UE4 crashes on start

[getnamo]

https://github.com/leapmotion/LeapUnreal/releases/tag/v2.17.1 works as expected but you need to use Unreal Engine 4.19.

Currently looking into the issue, should be addressed shortly.

[getnamo]

note to self:

• After replication of old v2.17 plugin in 4.20 it appears it's an engine api change or bug. Will need to find a work around. Might be related: https://answers.unrealengine.com/questions/811400/a-simple-animgraphnode-class-extended-from-animgra.html
• Bug appears to be adding an additional rotation that tracks hmd to hands, but only in packaged mode.

[michela]

Jan are you on UDN? If not, let me know if you need help getting Epic input on this.

[getnamo]

I'm not on UDN so that would be helpful no doubt, but first I want to narrow down the problem area so very specific feedback can be given. Atm I suspect it is related to something that changed in https://api.unrealengine.com/INT/API/Runtime/AnimGraphRuntime/BoneControllers/FAnimNode_SkeletalControlBase/index.html

Note to self: potential diffs:

• https://github.com/EpicGames/UnrealEngine/commit/6afdb03accdb9ebc15aa3f4aa9c24a1889df9d54#diff-e00f68a3d4428733d0eac2e5f2047bd6
• https://github.com/EpicGames/UnrealEngine/commit/d90da4ab1af73942ea27ce8261e5c3520103550b#diff-e00f68a3d4428733d0eac2e5f2047bd6

Will ping this issue when I have something concrete.

[juangea]

Waiting for this to be solved too, I´ll write here instead of writing in my closed issue, since it´s the same problem and this way I can save you having to look in the other issue @getnamo

I hope you find the solution soon :S

[juangea]

How is this going?

Any progress?

Thanks.

[getnamo]

This issue has the high priority, still looking for a workaround. Will update when there's progress.

[juangea]

Thanks, this is driving me crazy, I don´t know how am I going to make a release if this is not solved :P

And as I said, the release is for a client that must use the app in the 12th of october, I´m nearly dead...

[getnamo]

Fixed in https://github.com/leapmotion/LeapUnreal/commit/4878118568df461a37fd7d75170fdabf435d32f6 available as a release at https://github.com/leapmotion/LeapUnreal/releases/tag/v3.0.1

[michela]

Confirmed working - thanks!

[acttogreen]

thanks