Permission Denied (https://ipxe.org/err/0216eb)

[xeropresence]

[yes]: This bug persists when memory is increased beyond 8GB.

Describe the bug
Attempting to download proxmox or ubuntu results in a permission denied error message

To Reproduce
Steps to reproduce the behavior:

1. Boot the iso or chainload the uefi img
2. go to load proxmox or ubuntu
3. get error

Expected behavior
Images are downloaded and executed

Screenshots
https://i.imgur.com/ETAGV4e.png

Additional context
Debain seems to work as do a few others
I checked to make sure the system time is correct

[mikeodr]

I'm also seeing this.

I think there's an expired certificate somewhere but I need to track it down and debug further.

[chuckliu1979]

My self-hosting builds bootloaders also encounter such issue. how can i fix it ?