In the Apple Community forums, I did read about someone toggling the "Connected Servers" option on and off (Finder -> Settings -> Sidebar) made the share visible for him/her under "Locations".
Odd observation: my "AllShares" (the ConnectMeNow name for my share) is now shown under Favorites.

This may be helpful, once we see the share in "/Volumes" (note: programmatically I have zero influence on what Finder does or does not show):

1) Makes ure the share is mounted.
2) Go to "/Volumes/" and drag teh mounted share directory to 'Favorites"

This works for me (can't reboot at the moment to see if it survives a reboot).

Like you said the directory isn't showing in "/Volumes", which is very odd since the "Mount Style" - "systemcall" (macOS API) will mount in "/Volumes".

What version of ConnectMeNow are you using?
Easiest way to find and copy this: open the ConnectMeNow menu, go to "Help & About" - "Copy version info to clipboard" and paste it here.
Note: this maybe slightly different per ConnectMeNow version.

I'm using the latest version, which gives me this info:

Version: 4.0.23 (Build 86)
OS: macOS Tahoe 26
Version 26.5 (Build 25F71)
ARM (64 bits) application

Also note: not seeing the Eject button means it's not mounted (according to what I know of Finder).

This is what Finder shows me when looking at "/Volumes/":

When your share is mounted, what does the "mount" statement output in Terminal?

Try this in Terminal:

mount | grep //

It should show something like this:

//username@192.168.22.200/AllShares on /Volumes/AllShares (smbfs, nodev, nosuid, mounted by username)

Please post the output from your Mac - keep in mind to remove username and/or password if included in the mount output like I did in my example.

Here we can see that one share is mount in "/Volumes".

If you do not see anything in Finder in "/Volumes", then you could try and see what Terminal shows in that directory with:

ls -al /Volumes

Which should show something like this:

total 32
drwxr-xr-x   5 root  wheel    160 May 28 15:13 .
drwxr-xr-x  22 root  wheel    704 Apr 30 21:33 ..
drwxr-xr-x   3 root  wheel     96 Sep 21  2023 .timemachine
drwx------   1 username  staff  16384 May 30 11:03 AllShares
lrwxr-xr-x   1 root  wheel      1 May 16 17:20 Harddisk -> /

Note that directories/files that start with a period will be invisible in Finder.

Edit: There is no Eject Icon next to the ConnectMeNow connected NAS yet it wooers to me mounted (I can only get to the connects via the ConnectMeNow "Reveal in Finder" option.  Otherwise it's invisible

If the API is used (so not the commandline option) then macOS creates a directory for a given share in /Volumes/.

Note: Some times I use a directory in my home directory to mount specific shares using the commandline mountstyle. As you probably already figured, you can do this with the API (system call) mountstyle as well. Just drag the shared foler into Favorites in Finder.

If I navigate through Finder (my old way of mounting it) it seems to mount, but I have no idea how that relates to the mounted drive via ConnectMeNow.  Almost seems as though it's mounted twice.  When I mount through Finder, it shows up in the sidebar.  When I mount via ConnectMeNow and "Reveal in Finder" it doesn't.  I'm really confused.

The Eject icon next to the share indicates its mounted.

In Finder, the mounted server should appear under "locations".
Oddly enough the actual share will then be found under that server.
(you can find the setting here: Finder -> Settings -> Sidebar -> Connected Servers)

On that note:
I found ForkLift (one time fee - I've used my license for 3 years already without extra costs) and PathFinder (subscription model - not what I'd want to use) to be MUCH better than Finder and they both do show the share right away (my share example is called "AllShares"). Other free utilities may do the same, but so far I haven't found one I'd like (not a "commander" fan).

Tip: you can make the mounted share automatically visible on your desktop (Finder -> Settings -> General):

Not the perfect answer, but I hope it helps.

This also implies that the database of the old version may no longer exist. 😞 

I was able to get one NAS mounted (I have two), but it doesn't show in Finder.  I have to go to the menubar to "reveal in Finder" but it shows up grayed out with the internal directories/folders visible.  However, once I close that window it's hidden again.  Is there a way to mount it and have it stay visible in Finder?

Thanks

edit to add:  If I navigate through Finder (my old way of mounting it) it seems to mount, but I have no idea how that relates to the mounted drive via ConnectMeNow.  Almost seems as though it's mounted twice.  When I mount through Finder, it shows up in the sidebar.  When I mount via ConnectMeNow and "Reveal in Finder" it doesn't.  I'm really confused.

edit to add2:  The NAS in question has a volume name that is the same as the NAS, and the Volume has directories under it.  In retrospect this may have created some confusion on my part (wasn't NAS proficient when I set it up...still not really).  When I "reveal in finder" it skips the Volume level and goes right to the directories (doesn't really bother me). 

edit to add3: When I go to "Network" under the computer name I see one NAS connected (not the one I'm  setting up in ConnectMeNow) and one drive that appears to me unmounted (the one I AM setting up).  Yet ConnectMeNow is showing it mounted. I'm really confusedx2.

edit to add4: Read the main ConnectMeNow page and it described going to "/Volumes/" to see all connected drives, but I don't see the ConnectMeNow-mounted drive there. I'm really confusedx3.

This may be caused by autodetect "knowing" both shwos (in the database) and picking the first match.
To prevent this, go to Settings -> AutoDetect options and look under "Autodetect Hard Links".

Here you can link, for example, the phrase "matlock" to "Matlock (2014)" (TDVB 434780).
This way it should always pick the newer show (just for Matlock of course).

Unfortunately with all the crazy exceptions, it is very hard to make autodetect 100% watertight. 😞 
Let me know if this works for you. 😊 

Also: on the "Show and Episode Info" tab, under "TV Show History" you may see the old Matlock listed as well. Removing it there may fix the issue as well - well, until you by accident get the old show loaded into the database again of course. This is why hard links are more reliable, even when the old show is still there, autodetect will still pick the newer show.

I hope that makes sense 😊 

p.s. sorry about not being able to post screenshots - it will take 3 approved forum posts before you can post images or attachments. This is unfortunately needed due to spammers 😞