User not able to fill textbox fields when given remote control on windows machine

Zoom Apps
1

Zoom Apps Configuration
It is a full-stack JavaScript application integrated with a Zoom App and deployed on AWS. The application is published on the Zoom Marketplace under the name DocuSign eSignature.

Description
We are facing an issue when using Zoom Remote Control to allow a recipient to fill text fields inside the signing experience embedded within the Zoom app using an Iframe.

  • The recipient is able to sign the document successfully.
  • However, when the recipient tries to type into regular text fields (e.g., Company Name, Address, etc.), the textbox loses focus after typing 2–3 characters.
  • The user must repeatedly click the textbox to continue typing.
  • The data already typed is not lost, but continuous typing is not possible.
  • This issue only occurs when remote control is used on Windows.
  • The exact same flow works perfectly on macOS using Zoom Remote Control.

The app is uses the below zoom sdk:

  • zoom-apps-js-sdk.0.13.0.min.js
  • mock-zoom-apps-js-wrapper.min.js
  • mock-zoom-apps-js.sdk.0.13.0.min.js

Error
There is no visible error message shown to the user.

Troubleshooting Routes

  • Verified that the issue does not occur without Zoom Remote Control (local typing works).
  • Verified that the issue occurs only on windows machine and not on mac machines.

How To Reproduce

  1. Launch Zoom Desktop Client on Windows.
  2. Start a meeting.
  3. Launch the Zoom app.
  4. Start a sender-hosted signing session.
  5. Share the screen with the meeting participant.
  6. Grant Remote Control to the recipient.
  7. The recipient clicks into any text field (e.g., Company Name).
  8. The recipient starts typing.
  9. After typing 2–3 characters, the textbox loses focus automatically.
  10. The recipient must click the textbox again to continue typing.
  11. This repeats continuously for every text field.