Error: Ensure each CTC is inserted correctly before running check again

Hello,

I need to downgrade my MinKNOW installation to version 25.09.16 and the public downloads page only lists the current release. Can you help me providing a direct download link to the 25.09.16 Windows Installer?

The reason to doing so is that I am having an issue into checking the hardware with the CTC test and flowcell check. I get the message: "1 of 1 selected positions have failed the position check" - "Ensure each CTC is inserted correctly before running check again".

The problem is that it only occurs in the latest version of MinKNOW. I tried in another 2 computers with this newer version and the error occurs in all of them. Luckily I had the version 25.09.16 in a third computer and it passed the hardware check, however when I installed the newest version of MinKNOW it failed again. And I don't have any installers of the older versions.

Thanks in advance!

My setup:

• Nanopore device: MinION Mk1D;
• OS Windows 11 Pro
• GPU is an RTX 5070 12GB;
• 32 GB of RAM;
• CPU is a Ryzen 7 7800X3D.

The issue names no source file, test, or entry point. First reproduce the CTC and flowcell check on a MinION Mk1D with Windows 11 using MinKNOW 25.09.16 and the latest release, then inspect the relevant issue or release-tracking entry. Done requires confirming the version-specific regression and either a fix or a documented resolution.