Rclone cant access the folders within a SMB share - readdir error

tl;dr
run rclone mount as system user
or
run rclone mount pointing to folder, not drive letter

the OP might not realize that it takes more than that.
with windows, for each user, there are two separate set of shares.
one set of network shares if rclone mount is run with a command prompt that has administrator rights
one set of network shares if `rclone mount' is run with a command prompt that has not administrator rights.

here i show three command prompts

  1. rclone mount x: with admin rights.
  2. dir x: with a command prompt with admin rights, shows x:
  3. dir x: with a command prompt without admin rights, does not show x:

there way workarounds for that tho.

  1. run rclone mount as system user
  2. run rclone mount pointing to a folder, not a drive letter.

here i run a rclone mount to a folder and both command prompts can see the mount

and here is the other way round, the rclone mount is run as user without admin rights.
windows explorer runs without admin rights
so if you want windows explorer to see the drive letter, you must mount without admin rights or as system user.