Mouse Without Borders share clipboard just stops working

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#45,825 opened on Feb 27, 2026 6 comments 0 reactions 0 assignees View on GitHub

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Issue-Bug Needs-Triage Product-Mouse Without Borders

Dominant language: C
Stars: 139k
Forks: 8.6k
PR merge metrics: PR metrics pending

Description

### Microsoft PowerToys version

0.97.2

### Installation method

Other (please specify in "Steps to Reproduce")

### Area(s) with issue?

Mouse Without Borders

### Steps to reproduce

Both Github & MS Store versions exhibit this behavior. I've uninstalled the Github install on both PCs then installed the MS Store versions - same behavior.
Copy & paste text from one PC to the other fails after a number of times (~3 to 6) requiring closing out of PowerToys completely to work again.

### ✔️ Expected Behavior

Copy text from webpage on one machine to the other.

### ❌ Actual Behavior

Copy text from any webpage on one PC to paste into filename on the other PC works most times for ~3 to 6 times then just stops.
Doesn't matter which direction, with mouse & keyboard from both PCs, it fails after a few times requiring closing out Powertoys completely and relaunching. Sometimes the keyboard shortcut to reconnect works for a few times then again stops, sometimes doesn't work at all.
Never works without failing at some point ~10 times at best.

### Additional Information

PC 1
Edition Windows 11 Pro
Version 25H2
Installed on ‎11/‎11/‎2025
OS build 26200.7922
Experience Windows Feature Experience Pack 1000.26100.300.0
PC 2
Edition Windows 11 Pro
Version 25H2
Installed on ‎11/‎11/‎2025
OS build 26200.7840
Experience Windows Feature Experience Pack 1000.26100.291.0

### Other Software

[PowerToysReport_2026-02-27-07-47-25.zip](https://github.com/user-attachments/files/25604748/PowerToysReport_2026-02-27-07-47-25.zip)

Contributor guide

Open the contributing guide

First steps

Read the whole issue, then the project's contributing guide.
Comment on the issue to say you are picking it up — it saves two people doing the same work.
Fork the repository and make your change on a branch.
Open a pull request that references the issue number.

Research direction

Start by reviewing the attached PowerToysReport_2026-02-27-07-47-25.zip and the Mouse Without Borders clipboard behavior described in the reproduction steps. Reproduce repeated cross-PC copy and paste, then identify why it stops after several attempts and verify that clipboard sharing continues without restarting PowerToys.

Written by the indexing model from the issue text.

Assessment

Domain: desktop, operating-systems
Issue type: Bug
Difficulty: 4/5
Estimated time: 3-5 days
Activity status: Quiet
Clarity: Mostly clear
Newbie friendliness: 42/100