Sidewinder tone stays ON after firing the last missile when smokepods are mounted

[TOViper]

As the title says, the Sidewinder tone stays on after firing the last missile on an aircraft with smokepods mounted.
Mission out of editor, SP, 2.7.7.15038 OB
Since the tone is generated by the missile, there shouldn't be no further tone if the last missile was fired.

Smokepods on stations 1A + 8A
Sidewinder 9M on stations 1B + 8B

Here are the mission and the track-file:
F-14A_Sidewinder_Tone_stays_on.mizF-14A_Sidewinder_Tone_stays_on.trk