Activation code always fails — tested on Windows and macOS, multiple browsers

Prerequisites

• Using yarn
• Using an up-to-date master branch
• Using latest version of devtools
• For issue in production release, add devtools output

(Note: I'm using the packaged production app (v3.2.9), not building from source, so most prerequisites above don't apply.)

Expected Behavior

Entering the activation code from the Deskreen app into the web activation portal should successfully activate the Pro license and let me connect my devices.

Current Behavior

The activation always fails with: "Активация не удалась. Проверьте код и попробуйте снова" ("Activation failed, check code and try again"). This happens every single time, regardless of platform or browser.

Steps to Reproduce

1. Open Deskreen app (v3.2.9), generate the activation code shown on screen.
2. Open the activation URL (app.deskreen.com/...) shown alongside the code.
3. Paste (or manually retype) the activation code into the activation field.
4. Click "Активировать" (Activate) — result: "Activation failed" error every time.

Possible Solution (Not obligatory)

Not sure — tried both copy-paste and manual retyping of the code (to rule out invisible whitespace/formatting issues) with the same result. Also tried on two different operating systems and multiple browsers, so it doesn't seem to be a client-side/browser issue. Could this be an activation code TTL/expiry issue, or a problem on the server side of the activation endpoint?

Context

I purchased the Pro subscription specifically to use Deskreen as a wireless second display between two Macs. I'm currently unable to complete activation and use the paid feature at all.

Your Environment

• Node version: N/A (using packaged app, not built from source)
• Deskreen version or branch: 3.2.9
• Operating System and version: macOS, Windows (activation fails on both when using the same account/code)
• Link to your project: N/A