[BUG-ALPHA] - Creating Snapshots taking a VERY long time on Deployment in FO4

[ChemGuy1611]

Your Nexus Mods username
ChemBoy1

Describe the bug
When deploying mods in FO4, the "Creating Snapshots" step takes a VERY long time to complete. I can see in my Task Manager that Vortex is writing to disk, so it is probably writing snapshots to the .json file. Just not sure why it takes so long.

This also prevents the user from changing the managed game until the snapshotting is completed.

I let it run for more than an hour, and it never completed. The only way I was able to get out of this state was to downgrade Vortex to 1.15.2. After downgrade, the snapshotting was completed in a few seconds, with the identical mod list.

Mod List for Reference:

This is realated to the newfile-monitor extension: https://github.com/Nexus-Mods/extension-new-file-monitor/blob/6b5ea82f1dfe7ecab1c8152f70fd189aaa9ce505/src/index.ts

vortex.log

To Reproduce
Steps to reproduce the behavior:

1. Deploy mods in FO4.
2. See that "Creating Snapshots" step take a long time with no mods. And a MUCH longer times with only a few mods installed.

Expected behavior
Snapshotting should not take more than a few seconds, as is observed in Vortex 1.15.2.

Screenshots

Platform (please complete the following information):

• OS: Windows 11 25H2
• Vortex Version 1.16.0-ALPHA.2

Additional context
Downgrading to 1.15.2 seems to resolve this issue, so it must be introduced in the alpha.

[auroraflux]

I am not sure if this is related to the alpha (which I am not participating in) but I am experiencing this exact issue as you describe on the stable 1.15.2 build.