Symptoms
- Files snap back to original location instead of moving
- Dragging shows no visual feedback at all
- Works with mouse but not trackpad, or vice versa
- Only fails in one specific app or between apps
Likely causes
- CommonStuck modifier key or mouse button stateA key or button that got stuck 'down' can interfere with drag actions.
- CommonApp-specific restriction on drag and dropSome apps only allow dragging within themselves, not between apps.
- PossibleAccessibility setting like 'click lock' enabled unintentionallyCertain accessibility features change how clicking and dragging behave.
- PossibleOutdated mouse or trackpad driverDriver issues can affect complex actions like drag and drop specifically.
- Less commonFile is open or locked by another processA locked file can resist being moved even though it can be viewed.
What to do
- Restart the computer to clear any stuck key or mouse button state.
- Try the drag and drop action with a different input device (mouse vs trackpad) to isolate the cause.
- Check accessibility settings for anything related to click and drag behavior, like click lock.
- Test dragging within the same app versus between two different apps to narrow down the issue.
- Update your mouse or trackpad driver.
- Try copy and paste as a workaround if drag and drop remains broken for a specific case.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.