SUMMARY
I had Hindi language enabled in the application language chooser and American English as fall back language. American English is the default language I think.

I used Krita (nightly build) for some time, the tags and resources got Hindi names correctly.

I removed Hindi language and only kept the American English language. But the resources still have Hindi tags and subtitle names.

I am attaching a video showing the issue to explain this better. (There is also sever lag and cpu usage which so the please be patient to see the thumbnail popup and dropdown to appear, I will file a separate bug for CPU usage)

In my bug report dialog this information is shown:

Krita

 Version: 5.0.0-prealpha (git e89467b)
 Languages: hi, en_US, en, hi_IN, hi
 Hidpi: true

Qt

  Version (compiled): 5.12.11
  Version (loaded): 5.12.11

OS Information

  Build ABI: x86_64-little_endian-lp64
  Build CPU: x86_64
  CPU: x86_64
  Kernel Type: linux
  Kernel Version: 5.13.10-arch1-1
  Pretty Productname: Arch Linux
  Product Type: arch
  Product Version: unknown
  Desktop: KDE

OpenGL Info
 
  Vendor:  "NVIDIA Corporation" 
  Renderer:  "NVIDIA GeForce GTX 750 Ti/PCIe/SSE2" 
  Version:  "4.6.0 NVIDIA 470.63.01" 
  Shading language:  "4.60 NVIDIA" 
  Requested format:  QSurfaceFormat(version 3.0, options QFlags<QSurfaceFormat::FormatOption>(DeprecatedFunctions), depthBufferSize 24, redBufferSize 8, greenBufferSize 8, blueBufferSize 8, alphaBufferSize 8, stencilBufferSize 8, samples -1, swapBehavior QSurfaceFormat::DoubleBuffer, swapInterval 0, colorSpace QSurfaceFormat::DefaultColorSpace, profile  QSurfaceFormat::CompatibilityProfile) 
  Current format:    QSurfaceFormat(version 4.6, options QFlags<QSurfaceFormat::FormatOption>(DeprecatedFunctions), depthBufferSize 24, redBufferSize 8, greenBufferSize 8, blueBufferSize 8, alphaBufferSize 8, stencilBufferSize 8, samples -1, swapBehavior QSurfaceFormat::DoubleBuffer, swapInterval 0, colorSpace QSurfaceFormat::DefaultColorSpace, profile  QSurfaceFormat::CompatibilityProfile) 
     Version: 4.6
     Supports deprecated functions true 
     is OpenGL ES: false 

QPA OpenGL Detection Info 
  supportsDesktopGL: true 
  supportsOpenGLES: true 
  isQtPreferOpenGLES: false 

Hardware Information

  GPU Acceleration: auto
  Memory: 32050 Mb
  Number of Cores: 8
  Swap Location: /tmp

Current Settings

  Current Swap Location: /tmp
  Current Swap Location writable: true
  Undo Enabled: true
  Undo Stack Limit: 30
  Use OpenGL: true
  Use OpenGL Texture Buffer: true
  Disable Vector Optimizations: false
  Disable AVX Optimizations: false
  Canvas State: OPENGL_SUCCESS
  Autosave Interval: 900
  Use Backup Files: true
  Number of Backups Kept: 1
  Backup File Suffix: ~
  Backup Location: Same Folder as the File
  Backup Location writable: false
  Use Win8 Pointer Input: false
  Use RightMiddleTabletButton Workaround: false
  Levels of Detail Enabled: false
  Use Zip64: false


Display Information
Number of screens: 1
	Screen: 0
		Name: DVI-D-0
		Depth: 24
		Scale: 1
		Resolution in pixels: 2560x1440
		Manufacturer: BNQ
		Model: BenQ SW2700-
		Refresh Rate: 59