My sister noticed a duplicate taskbar entry after the update. This is the application: https://github.com/dazedcat19/FMD2/releases/tag/2.0.34.5

Initially I thoguht it was duplicated because the application is pinned to the taskbar, but even removing the pinned entry, closing the app, and reopening it the duplicate entry is still there.

To add further info, the duplicate entry disappears when moving the application to the main monitor with the default Windows taskbar.

Thanks for confirming.

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P.S.: This app has often issues, maybe you should add it to your final tests before release!