Garmin Express 7.16.0.0 Unable to install City Navigator North America 2024.10 to Computer

I think this an issue with the new maps, not Express.  I have an XT, a 590, a desktop computer for planning and a small Windows netbook for travel. After installing  Express 7.16, the new map installed fine on the XT, but errored out as soon as the desktop map installation started. Tried again using the 590, with the same result. I uninstalled Express 7.16 and reverted to 7.15 - same error.  Tried again on the netbook, refused the Express update, and v7.15.2.0 produced the same error - "Map changes failed.". Express 7.15 has worked in the past, what is different seems to be the maps.

Seeing the same on 7.16.1.0:

2023-02-03 08:09:44.1477 |  26 | I | Starting Download {@Downloadable} 
2023-02-03 08:09:44.3946 |  26 | I | 3e876e05 - Existing file MD5 comparison. Expected: d8f1190acdf521b1a619eb681473acc7 Actual: d8f1190acdf521b1a619eb681473acc7 
2023-02-03 08:09:44.3956 |  26 | I | Starting Download {@Downloadable} 
2023-02-03 08:09:44.5650 |  34 | I | 0cc4943f - Beginning download at byte index 0. (OK) 
2023-02-03 08:09:45.1209 |  25 | W | 0cc4943f - MD5 comparison failed. Expected: 8ad6ddcdfd85d08f76be92ba7710deb2 Actual: f4a44e8ac4a1616761a3d67fd47645b7 
2023-02-03 08:09:45.4817 |  25 | E | RetryOnFault failed 1 times out of 1. 
Networking.DownloadManager.HashMismatchException: Exception of type 'Networking.DownloadManager.HashMismatchException' was thrown.
   at Networking.DownloadManager.DownloadManager.<DownloadAsync>d__6.MoveNext()

Just to add a data point to help figure out if its GE or the map, using a Mac I was able to download 2024.10 to my zumo 660 using 7.16.0.0, then went back and did the computer. No idea if splitting it up this way helped or if there is a Windows-specific issue. 

PS: Garmin has now released 7.16.1.0

Yes, I agree on that assessment. The Hash mismatch indicated that the files selected for download didn't match what Express was expecting (a specific version/size/ECC value, etc.).

Working here now also.

Thank you Garmin for a quick solution. 

Apparently they fixed the problem with the map. I just successfully installed CNNA 2024.10 to my PC using Express 7.15.0.0 and to my netbook using Express 7.16.1.0.

Express no longer provides an option to install the map to a different location. Before, it offered the option and ignored your preference, but it was nice to be asked. It's a struggle to keep enough room free to install the map on the netbook (48Gb free after Windows installation, ~8Gb free usually) and then move it to the D: drive. Sometimes have to move stuff to D: temporarily, install the map, move it, clean up the extra copies and then move the C: files back where they belong.

Same. Am now able to Install to Computer from the GE 7.16.1.0 program. No MD5 hash comparison error. Appears issue was fixed on Garmin's back end.

2023-02-03 13:06:12.9623 |   1 | I | Showing modal: Garmin.Omt.Express.UI.Updates.EulaViewModel 
2023-02-03 13:06:19.5197 |   1 | D | Page changed to UpdateWizardViewModel 
2023-02-03 13:06:19.5686 |  32 | I | ComputerMapUpdateOperation_3886631739_CN-A57-46 setting phase to Downloading. 
2023-02-03 13:06:19.6016 |  32 | I | Downloading 258 
2023-02-03 13:06:19.6376 |  32 | I | Removing operation Garmin.Omt.Service.Operation.Map.Computer.UpdateComputerMapOperation from queue. 
2023-02-03 13:06:19.6566 |   9 | I | Starting Download {@Downloadable} 
2023-02-03 13:06:19.9032 |   9 | I | 4096b053 - Existing file MD5 comparison. Expected: d8f1190acdf521b1a619eb681473acc7 Actual: d8f1190acdf521b1a619eb681473acc7 
2023-02-03 13:06:19.9032 |   9 | I | Starting Download {@Downloadable} 

Map download location now includes the map installer files:

Map installed properly and can be used in Basecamp.

Thanks for the confirmation. I'll close this thread.