Feed Me button gets rid of many chunks

[KatieWoe]

Test device
Lovelace
Operating System
ChromeOS
Browser
Chrome
Problem description
For phetsims/qa#488. Not in published.
When you refill the biker source by clicking the feed me button, most of the chunks on the way to the wheel/at the wheel disappear. In published new ones were added and none disappeared. This new behavior looks odd and causes gaps in the powering to object.
Steps to reproduce

1. Go to the second screen
2. Make sure biker is active.
3. Turn on energy chunks
4. Start running biker
5. Press feed me button when it comes up

Visuals
Published:

Dev:

Troubleshooting information:

!!!!! DO NOT EDIT !!!!!
Name: ‪Energy Forms and Changes‬
URL: https://phet-dev.colorado.edu/html/energy-forms-and-changes/1.2.0-dev.12/phet/energy-forms-and-changes_en_phet.html
Version: 1.2.0-dev.12 2020-03-25 17:48:58 UTC
Features missing: touch
Flags: pixelRatioScaling
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.116 Safari/537.36
Language: en-US
Window: 1536x722
Pixel Ratio: 2.5/1
WebGL: WebGL 1.0 (OpenGL ES 2.0 Chromium)
GLSL: WebGL GLSL ES 1.0 (OpenGL ES GLSL ES 1.0 Chromium)
Vendor: WebKit (WebKit WebGL)
Vertex: attribs: 16 varying: 30 uniform: 4096
Texture: size: 16384 imageUnits: 16 (vertex: 16, combined: 32)
Max viewport: 32767x32767
OES_texture_float: true
Dependencies JSON: {}

[chrisklus]

Thanks @KatieWoe! This should be fixed on master.

[KatieWoe]

Looks good on master

[chrisklus]

Thanks! Closing.