Google-play-music-desktop-player-unofficial-: 'back' button missing and duplicate 'mini player' button after updating

[dags-]

OS:
macOS High Seirra - 10.13.6 Beta

GPMDP Version:
4.6.0

Issue Descriptions:
Just noticed these ui bugs after updating to 4.6.0, not sure if they were present previously.

• 'back' nav button missing from search bar
  

• duplicate 'show mini player' button in controls bar
  

Steps to Reproduce:
Open the app

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[nooplak]

I'm having the same issues after the latest update running on Windows 10 - v. 1803 build 17134.112

Unfortunately the absence of a back button breaks this app for me, as I dive down a lot of rabbit holes to find new stuff. Wish it weren't so.

[nickleur]

I'm having the same issue after the update to 4.6.0.

In addition my thumbarbuttons are also missing after this update.

System is Windows 10 Pro - v. 1803 build 17134.112

[charlwillia6]

I also am confirming this is an issue in Linux also, Manjaro.

[jostrander]

Unrelated to platform, and it's already fixed.