Published HTML5 Graphics Disappear / Empty After Last Frame

Publishing an HTML5 Project with Loop Timeline turned off, and with a Graphic Symbol that:

- Has a same or longer length of frames as there are in the main timeline.

- Has no empty frames

- Is set to "Play Once"

results in the Graphic disappearing after the published animation reaches its end. 

Workarounds so far are manually inserting a "stopping" keyframe at the end of the animation, such as:

- On any layer, adding a keyframe with "this.stop()" or similar actionscript 

- On the Graphics layer in the main timeline, converting the final frame into a keyframe and switching the graphic to "Hold Frame" 

These workarounds, in my opinion, should be unnecessary considering I already have Loop Timeline turned off and the Graphic symbol set to "Play Once." Additionally, adding a "stopping" frame adds  additional layers and/or keyframes, which bloats the timeline and can easily lead to errors if moving the graphic without "Edit Multiple Frames" always enabled.