Thanks for filing the issue!

Unable to reproduce the issue on reported chrome version 67.0.3396.87 using Mac 10.13.1 with the below mentioned steps.
1. Launched chrome
2. Navigated to www.Photopea.com
3. Observed 7 buttons in the right bottom corner.
4. Clicked File -> New -> Create.
We didn't observe the buttons disappearing. Attaching the screen cast of the same.

@ReporterL: Could you please have a look at the screen cast and let us know if we have missed anything in the process. Any further inputs from end may help us.

Deleted: 854340.mp4 1.5 MB

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Sorry, I did not mean the colored buttons, but the buttons at the bottom right of the whole website.

https://imgur.com/jddUG1C

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For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Checked the issue as per comment#3 on reported chrome version 67.0.3396.87 using Mac 10.13.1 with the exact steps mentioned in comment#2. After clicking Create we didn't observe the buttons getting disappeared. Attaching the screen cast of the same for reference.

@Reporter: Could you please have a look at the screen cast and let us know if we have missed anything in the process. And we request you to check the same in a new profile with out any apps & extensions and let us know if the issue still persists.

Thanks!

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	854340-II.mp4 1.4 MB View Download

I did it with Chrome 67.0.3396.87 , Mac OS X 10.11.6 . 

about://gpu  : https://pastebin.com/J3y31mFt

Video: https://www.youtube.com/watch?v=jjxhHb7XM9s&feature=youtu.be

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	image.png 431 KB View Download

Deleted: image (1).png 453 KB

	image (1).png 453 KB View Download

Thank you for providing more feedback. Adding the requester to the cc list.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Submitter: why are you still running 10.11? There are *many* graphics driver bugs in that OS release affecting Chrome, and we can not continue to triage and work around them.

Ok, I will try to update over the weekend. 

Btw. when I run Mac OS High Sierra in VirtualBox on Windows, there is still the same bug. 

I think everything worked well before Chrome 67. Is there any official list of OSs, which you claim to be supported / unsupported by Chrome?

As per comment#10 will wait for reporters feedback. Hence adding Needs-Feedback label.

Thanks!

macOS 10.11 is officially supported by Chrome but it happens that the Intel GPU driver in that OS release had several graphics driver bugs. You can always check the contents of about:gpu to see what driver bug workarounds are in effect on your system and these two files for general stability issues on a given OS version or GPU:

https://cs.chromium.org/chromium/src/gpu/config/software_rendering_list.json
https://cs.chromium.org/chromium/src/gpu/config/gpu_driver_bug_list.json

Can you please provide about:gpu information from the High Sierra setup in a VM? I'm pretty sure that is a completely unsupported configuration but if we can figure out how to reproduce this in top-of-tree Chrome and a recent OS then we will look into it.

It would also help if you could try to distill this into a smaller test case.

Mac triage: WontFix bug without followup on a modern version.