"Corrupted clipboard data" copying from server to client #9279

Sanity checks

• I have done the sanity checks, and my issue persists
• These sanity checks are not relevant to the bug

Deskflow version info

When I copy text to my clipboard on the server, the client reports it as only 4 bytes. I see there are several old closed issues on this, but it's unclear if the problem was ever fixed. I only noticed this happening recently.

Server: Deskflow: 1.25.0.0 (d4ff55d)
Qt: 6.10.0
System: Windows 11 Version 24H2

Client: Deskflow: 1.25.0.75 (023c950)
Qt: 6.10.0
System: macOS Tahoe (26.2)

Error log from MacOS client:
[2025-12-14T10:26:58.569] INFO: entering screen
[2025-12-14T10:26:58.577] ERROR: corrupted clipboard data, expected size=4 actual size=1105
[2025-12-14T10:26:58.578] ERROR: corrupted clipboard data, expected size=4 actual size=1105

Log from Windows server:
[2025-12-14T10:26:59.586] INFO: switch from "WIN_SERVER" to "MAC_LAPTOP" at 1495,573
[2025-12-14T10:26:59.586] INFO: leaving screen
[2025-12-14T10:26:59.595] INFO: screen "WIN_SERVER" updated clipboard 0
[2025-12-14T10:26:59.595] INFO: screen "WIN_SERVER" updated clipboard 1
[2025-12-14T10:27:06.727] INFO: screen "MAC_LAPTOP" grabbed clipboard 0 from "WIN_SERVER"
[2025-12-14T10:27:06.727] INFO: screen "MAC_LAPTOP" grabbed clipboard 1 from "WIN_SERVER"

Build type

Deskflow package (downloaded from Deskflow)

Operating systems (OS)

• Windows
• macOS
• Linux (X11)
• Linux (Wayland)
• BSD-derived
• Other (please specify)

Deskflow configuration

Win11 server, macos laptop is on the left
Win11 server has two monitors, laptop has built-in display

What steps will reproduce the problem?

Copy text to clipboard on windows
move mouse to mac. It doesn't transfer to the mac

Log output

see above

Additional information

No response