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Spring Arm Component Rotation Bug

I just update my project to 4.17 and came across a issue, I was using the Spring Arms rotation to get the forward vector to do a line trace, and after updating this trace broke, so i printstringed the rotation of the Sprint Arm and its no longer getting rotaion on its X and Y axis when the pawns camera moves.

Product Version: UE 4.17
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asked Aug 08 '17 at 03:34 PM in Bug Reports

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avatar image TJ V ♦♦ STAFF Aug 09 '17 at 06:13 PM

Hi OverRated_AU,

I attempted to reproduce this using the 3rd Person Template but the default spring arm print the correct forward vector even after upgrading to 4.17.

Could you provide exact repro steps and/or a small test project that has the issue?

avatar image OverRated_AU Aug 10 '17 at 08:36 AM

I can provide a test project if you need, you can reproduce this issue but creating a 1st person template, then adding a SpringArm and dragging the FirstPersonCamera onto it so its childed to it, then setting the SpringArm camera settings to use pawn control rotation, then printing the rotation of the spring arm on the event tick, you will see only the Y axis updates, you can test this in 4.16 and it updates fine, i can use the camera rotation but with camera lag enable it gives my placement actor delayed movement thanks.

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I was able to reproduce this issue, so I've created JIRA UE-48351. Our developers will be investigating further.

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answered Aug 11 '17 at 05:37 PM

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avatar image OverRated_AU Aug 13 '17 at 07:51 AM

Thank you.

avatar image Alex O ♦♦ STAFF Jan 22 '18 at 05:05 PM

Hello, Just wanted to follow up on this with some info from the Bug Report.

To get rotation values on Spring Arm use "GetTargetRotation()"

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