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[GUI] Unable to run 0.2.0 or 0.2.1 beta app (.exe) CUDA12 or CUDA13 on Win11 after install #3386

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[GUI] Unable to run 0.2.0 or 0.2.1 beta app (.exe) CUDA12 or CUDA13 on Win11 after install#3386

Description

@armanchlpaty-ctrl
armanchlpaty-ctrl
opened on Oct 20, 2026

Strata Version

0.2.0-beta
0.2.1-beta

Description

After installation and execution, the following processes appear briefly in Task Manager: strata-desktop.exe and node.js (node.js lasts a bit longer). No application window or error message is displayed.

System Configuration

  • CPU: Intel Ultra 5 225F
  • RAM: 32 GB DDR5 6000 MT/s
  • GPUs: 3x GPUs (RTX 5060 Ti 16GB / RTX 2080 Ti 22GB / RTX 3070 8GB) on PCIe setup
  • OS: Windows 11
  • CUDA: Tested on CUDA 12 & CUDA 13 environments

Additional Information

LM Studio works fine with all GPUs in this setup.

Log file

Strata app start failure

When: 20261020-092552 UTC
App: Strata desktop 0.2.1
System: windows 10.0.26300
What: the Strata App Host did not become healthy at http://127.0.0.1:47831/api/health: connection timed out
Meaning: Strata's background program did not start. Security software may have blocked a file in the Strata folder. Allow the Strata folder in it (or reinstall Strata) and start Strata again.

[shell] Strata desktop 0.2.1 starting (pid 12492)
[shell] System: windows 10.0.26300
[shell] START FAILED: the Strata App Host did not become healthy at http://127.0.0.1:47831/api/health: connection timed out

Activity

  1. github-actions
    added
    needs-formatTitle or template does not follow CONTRIBUTING.md yet
    on Oct 20, 2026

  2. github-actions commented on Oct 20, 2026

    @github-actions
    github-actionsBot
    on Oct 20, 2026 – with GitHub Actions

    Thanks for the issue. To keep the tracker readable, every item needs an area prefix in the title and the parts of the issue form filled in. This one is missing:

    • Start the title with its area: [Engine], [GUI], [TUI], [Benchmark], [Docs] or [Other], then a short description. Example: "[Engine] decode stops after 2 minutes".
    • Add the Strata version (Settings > About, or strata --version).

    Edit the issue (title and description) and this note goes away on its own. If it is still missing parts in 5 days it will be closed, which is not a rejection: fix it and comment /reopen.

    Details: CONTRIBUTING.md

  3. armanchlpaty-ctrl
    changed the title [-]unable to run 0.2.0 beta app(.exe) CUDA12 or CUDA13at Win11 after install[/-] [+][GUI] Unable to run 0.2.0 beta app (.exe) CUDA12 or CUDA13 on Win11 after install[/+] on Oct 20, 2026

  4. github-actions commented on Oct 20, 2026

    @github-actions
    github-actionsBot
    on Oct 20, 2026 – with GitHub Actions

    Thanks, this follows the format now.

  5. github-actions
    removed
    needs-formatTitle or template does not follow CONTRIBUTING.md yet
    on Oct 20, 2026
  6. armanchlpaty-ctrl
    changed the title [-][GUI] Unable to run 0.2.0 beta app (.exe) CUDA12 or CUDA13 on Win11 after install[/-] [+][GUI] Unable to run 0.2.0 or 0.2.1 beta app (.exe) CUDA12 or CUDA13 on Win11 after install[/+] on Oct 20, 2026

  7. armanchlpaty-ctrl commented on Oct 20, 2026

    @armanchlpaty-ctrl
    armanchlpaty-ctrl
    on Oct 20, 2026
    Author

    Resolved on v0.2.1!
    The issue was caused by Windows Defender / Antivirus blocking the background App Host executable.
    Adding the Strata installation directory to antivirus exclusions fixed the issue.
    ( C:\Users<Name>\AppData\Local\Programs\Strata to Exclusions in Windows Defender. )

  8. armanchlpaty-ctrl
    closed this as completedon Oct 20, 2026
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