Robots Float Downwards Within the Move Tool [SYNTH-173] - #1383
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PepperLola
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Jul 7, 2026
PepperLola
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BrandonPacewic
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* origin/branp/171/urdf-import-support: (37 commits) feat: missing material fallback fix: memory management stuff chore: update submodules chore: don't specify autodesk registry for jolt-physics chore: update joltjs Robots Float Downwards Within the Move Tool `[SYNTH-173]` (#1383) Remove TransformAssemblyPanel.tsx `[SYNTH-212]` (#1382) refactor: minor naming fix: lint refactor: move isWheel to separate file fix: axis alignment bug refactor: move other functions to `ConstraintSettingsUtilities.ts` refactor: move constraint functinos to separate file chore: some commenting and renaming refactor: ball constraints fix: hinge limits fix: slider constraints chore: cleanup imports refactor: standardize interface for applying limits chore: remove non-null asserts ...
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Task
SYNTH-173
Symptom
Spawning a light robot and configuring it with swerve (arcade drive doesn't have this issue), then navigating to the move config tab causes it to slowly float down.
612770757-401e5ccb-4fd9-4719-b167-ad743bb42b03.mp4
Here is the light swerve robot tested with SDS_Tutorial_Bot_v4.zip
Solution
Physics wasn't being disabled on move configuration at a global level, and swerve was independently reactivating physics for each body fighting with the per body physics disabling, causing the robot to slowly drift down.
Disable physics at a global level when moving a robot. This is the same behavior done in the InitialConfig panel.
Verification
Before merging, ensure the following criteria are met: