Show / Hide Specific Application not working as expected (Epichrome)

Describe the bug
The Show/Hide Specific Application action won't hide site-specific-browser apps created with Epichrome. The action Launches and Shows these apps, but doesn't Hide.

Affected input device (e.g. MacBook Trackpad, Magic Mouse/Trackpad, Touch Bar, etc.):
Normal Mouse

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Device information:
2019 iMac 5K
macOS 10.15.3

  • BetterTouchTool version: 3.372

Additional information (e.g. StackTraces, related issues, screenshots, workarounds, etc.):