First, thanks for the feedback. I'm embarrassed because IRL, I used to do QA.
I'm trying to install Ubuntu 26.04 LTS Desktop to an external SanDisk 4 TB SSD drive from a usb microsd card reader with a 28 GB card in it.
I get the "Something went wrong" screen. This happens with two different computers.
When I click the "Show Log" button, the only message that is displayed is "No journal files were found."
This is very reproducible.
I've also tried it with a PNY 128 GB flash drive. This installation got further but encountered an error during installation.
The download checksum verified successfully.
Is there any way to verify the installation media?