Seg-fault when trying to access flathub via Ubuntu on Windows-10 - ubuntu-16.04

I'm running into a segmentation fault when trying to get started using flatpak and flathub on Ubuntu on Windows 10. My Windows 10 setup is actually a VM running on a Windows 8.1 laptop, but I don't think that's the issue.
I was able to get flatpak installed, but when trying to access flathub it just immediately seg faults. On the flatpak.org website, they say that you can add the Flathub repository with this command:
$ flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrep
But that as admin results in the following error:
Segmentation fault (core dumped)
Can anybody with experience using flathub on Ubuntu 16.04.3 on Windows 10 explain how they got that to work? Thanks.

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Google VM Instance Stopped Working after Upgrade

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I took screenshot of my VM using Google Cloud Shell. It is as follows:
I connected with serial console which is as follows:
While creating a ticket with google, I found that they've posted some information under "Known Issues". I am pasting the whole stuff as there is no direct link to reach there. The symptoms they told were exactly what was happening to me:
Below is Known Issue Posted by Google:
Description:
We are experiencing an issue with Google Compute Engine instances running RHEL and CentOS 7 and 8. More details on this issue are available in the following article and bugs: https://access.redhat.com/solutions/5272311 https://bugzilla.redhat.com/show_bug.cgi?id=1861977 (RHEL 8) https://bugzilla.redhat.com/show_bug.cgi?id=1862045 (RHEL 7) Symptoms: Instances running RHEL and CentOS 7 and 8 that run yum update may fail to boot after restart with errors messages referring to a combination of: "X64 Exception Type - 0D(#GP - General Protection) CPU Apic ID", "FXSAVE_STATE" or "Find image based on IP". This issue affects instances with specific versions of the shim package installed. To find the currently installed shim version, use the following command: rpm -q shim-x64 Affected shim versions: CentOS 7: shim-x64-15-7.el7_9.x86_64 CentOS 8: shim-x64-15-13.el8.x86_64 RHEL 7: shim-x64-15-7.el7_8.x86_64 RHEL 8: shim-x64-15-14.el8_2.x86_64 Workaround: Do not update or reboot instances running RHEL or CentOS 7 and 8. If you are on an affected shim version, run yum downgrade shim\* grub2\* mokutil to downgrade to the correct version. This command may not work on CentOS 8. If you have already rebooted, you will need to attach the disk to another instance, chroot into the disk, then run the yum downgrade command. We will provide an update by Thursday, 2020-07-30 14:00 US/Pacific with current details.
Start time:
July 30, 2020 at 9:08:34 PM GMT+5
How to diagnose:
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Workaround:
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