S4S since last update will not import mesh into pack FIXED

Hi
What do your s4s settings look like?
At present everything is on D drive. Which is what I have been using for a very long time.
(I have been using the zip S4S in my document for the last couple of days. Have always worked with installer version until a couple of days ago. Which at present only has the 2 overalls in and a folder for making recolours of my Country Living Walls which I placed there last night) This is to make sure that the new mesh each time is the adjusted mesh. New name or delete exported mesh.

3 days in a row re-installed only the base game on c drive (through Origin). Put blender on c drive also. So only my documents were still on D drive. Re-installed S4S with settings to there. Re- fixed the overalls. No thing changed with the mesh in Cas. Only have a small C drive. So change the drive to D through Origin download. Which worked until the last update. Use revo uninstall to delete the 3 programs which scans and deletes leftover files. Going to try documents on c drive

Using this package as example but this is happening to some other packages which I have opened in S4S and have tried to fix the mesh.
I made the Ashley Overalls before the last update. Tested them in game and Cas. Made and imported all my textures and bump map. (Not straight away) Made a new packages which was a glove clone so instead of making each recolour of the overalls. (Which I had started to do)
Testing the last package is when I noticed that the overalls had a open seam at the join. This why I have no idea what is happening. As I could not fix it. Deleted everything.

Also the new packages of new Frankenstein meshes (Never the same bottom) were doing the same thing. Exported mesh from the package show that the mesh still had the un-joined seam in blender, Which I kept fixing and importing. Export mesh from package. Same un-joined seam. So thought blender was not saving the mesh. Until I check the adjusted mesh to the exported mesh from the package. One was joined (Which was imported to the package. Saved. Placed in mod folder. Looked at in CAS) and the other not joined. (Exported after closing the game from the mod folder)

Do you have S4studio CAS tools in the version of blender that you are saving the package?
Yes

Could someone look at the mesh and package in game. This is the original working package for the shoulder tie overalls
the mesh in blender when I open it is sealed at the join. Use G to move and there is no gap. But when I placed the package in the mod folder and took it in game. There is a gap.  Had done a repair to make sure the game is working. Was not problem found with game files.

www.simfileshare.net/download/3144068/

mesh made 25/2/2022
package made 26/2/2022

Thanks. Will look at it. Sorry some family problems have came up today. So are unable to trouble shoot for a while.

My problem is not joining the mesh but not being able to import the fixed mesh into S4S package.
As I stated I checked the mesh to make sure the 2 meshes were joined.
Tested them by moving the joined vertex where each time I import the joined mesh in game it shows that it is not joined.
Used a marked texture to make sure that it was where I had joined the mesh. Using the Uv map to mark the texture in case I had it wrong and there was a different row that was not joined.
When I export the mesh from the package that had the joined mesh import to. The mesh when it is export shows that it is not joined.
S4S will not replace the mesh in the package. Old one showed a un-joined mesh. Replacement mesh has been joined and tested to make sure it is joined. The join line is solid.
So it has been. Fix the mesh. Import into package. Save. Go into Cas. Gap in mesh. Fix mesh. Import mesh. Save. Into Cas again. The gap is still there. AS I said this is not the only package that this is happening to. Have at least another 2 packages.

To make sure that blender is saving the joined mesh. Have gone back 20-30 minutes later and reopened. Mesh shows as joined.
I have tried with doubles not removed. Removed them with the settings above in your Image. Both meshes have a gap when imported

I am using 2.76 from this sites download link. 64 Bit. So as this is the same blender but even though I have not changed anything the configurations has changed. When I install the last S4S version. As I never to a re-install of blender with the new install of S4S. Use the blender settings which are there when I installed it. That I have used for a very long time. Do not play with Blender settings because I have no knowledge of have to do that. The only settings I reset each update is where S4S finds Game, Blender and documents. Re-enter my user name. as I do a clean reinstall each time.

All I can try now is 32Bit blender. Tested and tested. Gave up, Left making or fixing meshes for weeks. Then tried again this week

Ok. Will try tomorrow

Did you import the mesh in the second pic just as it looks like in the pic in the package and the change did not happen in s4s?

or are you showing that there is no gap in the mesh and textures?

I saw your post here, did a different package work?
Could you please do this exactly as I mentioned before: clone a hairstyle, export the blend, in edit mode make one meshgroup bigger so that it is obvious, do not hide other meshgroups, save, import back in the package.

New package said that it could not find some path I think for blender.  New packages do not work. Time and time again have tried.
Will try to see if a mesh from a finished package will import and display without a gap in CAS. I know it did not work with the Valentine Dress mesh.