[Bug]: No smooth animation when returning to the initial position

[zispidd]

Version

v5

Reanimated Version

v4

Gesture Handler Version

v2

Platforms

iOS

What happened?

There is no smooth animation when returning to the initial position. Also, for some reason, animateOnMount={false} does not work in my main code (the animation still plays when animateOnMount is set to false).

Error is on reanimated 4+

Reproduction steps

IMG_5399.MP4

Reproduction sample

https://snack.expo.dev/@zispidd/playful-violet-pizza

Relevant log output

[zispidd]

Reanimated 3 is working well, but animateOnMount={false} is not working. It shows animation when it shouldn't. Only on New Architecture, old works well

Update: old architecture seems also not working

[veliseev93]

The same +1

[veliseev93]

Any updates?

[zispidd]

No updates

[ben-wright]

I was having the same issue with animateOnMount on 5.2.6, downgrading to 5.1.8 resolves it

[github-actions]

This issue is stale because it has been open 30 days with no activity. Remove stale label or comment or this will be closed in 5 days.

[zispidd]

still issue

[snacksncode]

Can confirm this is still an issue and repro works on Expo Go with Expo 54.
This annoying snapping is something I noticed across New Arch + Gesture Handler v2 + Reanimated v4.
Example that gesture handler shows exhibits this exact snapping issue on reanimated version: code snippet (+ backup). Legacy looks and feels great, Reanimated one for quick "flicks" snaps with no animation. Easy to see when "overextending". Same thing plagues bottom sheet but when overextending the sheet above it's snap point if you flick it then it snaps back instantly just like swipeables. Not sure where to report this

react-native-reanimated@4.1.3
react-native-gesture-handler@2.28.0
expo@54.0.22
@gorhom/bottom-sheet@5.2.6

ScreenRecording_11-04-2025.13-47-34_1.MP4

[github-actions]

This issue is stale because it has been open 30 days with no activity. Remove stale label or comment or this will be closed in 5 days.

[zispidd]

Still issue