Native two-button chord with action on Click Release leaves left mouse button state stuck

Bugs or Unexpected Behavior
1

BTT version: 6.479 macOS version: Mac Studio M3 Ultra - Tahoe 26.3.1

Mouse: Logitech MX Master 3S

Setup: Recorded a native two-button chord (Left Click → Right Click) in Normal Mouse using the new chord recording from 6.041. Single action "Middle Click (At Current Mouse Position)" assigned to "Actions Executed On Click Release".

Expected: When chording on a link in Chrome, the link opens only in a new background tab (middle-click semantics).

Actual: First time after a few seconds of inactivity, it works correctly. From the second consecutive invocation onward, the link opens BOTH in a new tab AND in the current tab, as if the original left mouse down were being delivered to Chrome on release. Waiting a few seconds without using the chord seems to reset the state, and the next first invocation works again.

Reproducible 100% of the time with this pattern. Happy to record a screencast if useful.

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2

unfortunately this can not fully be prevented (If I understand your case correctly). The issue is that your mouse will always create a left mouse down event when pressing the left mouse button, and it will always be too late for BTT to block that. This means the left mouse down will always reach the target app.

Button chords work best with other buttons or in situations where the left click does not have an effect.

3

Thanks Andreas, but I think there might be a misunderstanding — let me try to describe the behavior more precisely:

Setup

  • Native two-button chord: hold Left Click + click Right Click
  • Action triggers on Right Click *Release*
  • Cursor is hovering over a link in the browser the entire time

First execution — works correctly:

  • Press Left (hold) → no current-tab navigation :white_check_mark:
  • Press Right (Left still held) → nothing visible :white_check_mark:
  • Release Right → action fires, link opens in new tab :white_check_mark:
  • Release Left → nothing happens :white_check_mark:

Second / third / fourth execution — broken:

  • Press Left (hold) → no current-tab navigation :white_check_mark:
  • Press Right (Left still held) → Current tab navigates to the link :cross_mark: (This is the error)
  • Release Right → Link opens in new tab :white_check_mark: (But only if the click and release of the right button have been done consecutively. On the 1st execution it would work even if I did the process very slowly).

I’d also like to mention: I would love to be able to do the chords with other buttons, but in my case all my other mouse buttons are already assigned to different actions, so Left + Right is the only combination I have available. Any workaround or fix for this would be really appreciated!!

Thank you so much!!