thumbImage not working on Rn 0.84.0

[czekFREE]

Environment

• react-native info output:
  System:
  OS: macOS 26.3
  CPU: (14) arm64 Apple M4 Pro
  Memory: 313.73 MB / 24.00 GB
  Shell:
  version: 3.2.57
  path: /bin/bash
  Binaries:
  Node:
  version: 22.19.0
  path: /Users/jibeleck/.nvm/versions/node/v22.19.0/bin/node
  Yarn: Not Found
  npm:
  version: 10.9.3
  path: /Users/jibeleck/.nvm/versions/node/v22.19.0/bin/npm
  Watchman: Not Found
  Managers:
  CocoaPods:
  version: 1.15.2
  path: /Users/jibeleck/.rbenv/shims/pod
  SDKs:
  iOS SDK:
  Platforms:
  - DriverKit 25.2
  - iOS 26.2
  - macOS 26.2
  - tvOS 26.2
  - visionOS 26.2
  - watchOS 26.2
  Android SDK: Not Found
  IDEs:
  Android Studio: 2025.2 AI-252.27397.103.2522.14514259
  Xcode:
  version: 26.2/17C52
  path: /usr/bin/xcodebuild
  Languages:
  Java:
  version: 17.0.8
  path: /usr/bin/javac
  Ruby:
  version: 2.7.4
  path: /Users/jibeleck/.rbenv/shims/ruby
  npmPackages:
  "@react-native-community/cli":
  installed: 20.1.1
  wanted: 20.1.1
  react:
  installed: 19.2.3
  wanted: 19.2.3
  react-native:
  installed: 0.84.0
  wanted: 0.84.0
  react-native-macos: Not Found
  npmGlobalPackages:
  "react-native": Not Found
  Android:
  hermesEnabled: true
  newArchEnabled: true
  iOS:
  hermesEnabled: true
  newArchEnabled: true

• are you using the new architecture?
  yes

• which version of react & react-native are you using?
  "@react-native-community/slider": "5.1.2",
  "react-native": "0.84.0",

Description

custom thumbImage stoped working after update to latest RN (not sure if problem is latest RN or enabling new arch).

Problem seem to be in RNCSliderComponentView.mm - loadImageFromImageSource is relying on bridge.

I am appending patch package generated by Cloude LLM to bypass this issue. This patch might not be best, it seems to me that native thumb sometimes flashes for a milisecond before custom image is loaded

@react-native-community+slider+5.1.2.patch