Undo and Reset buttons hiding

[yshkvarok]

Describe the bug
Undo and reset buttons are both hiding after drawing. They become visible on hover.

To Reproduce
Steps to reproduce the behavior:

1. Go to tui-image-editor demo https://ui.toast.com/tui-image-editor/
2. Click on 'draw' button and start drawing
3. As soon as you release the mouse button to stop drawing, the reset and undo buttons disappear.

Expected behavior
These buttons should stay visible.

Screenshots

Desktop (please complete the following information):

• OS: Mac OS 10.14.4
• Browser: Chrome
• Version: 83.0.4103.106

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[OculusMode]

@kyuwoo-choi I tried to generate this in master branch(linux OS) however this doesn't seem to be happening.
Is latest code deployed on given url?

[lja1018]

Thank you for reporting. A bug in the demo of our brand site has been fixed. Thank you.