Union remote is causing applications to read old version of files

So I have two remotes 1: and 2: and I have a union remote with them. And I do a rclone mount with my union remote.

1 is my main remote that is always update, 2 is my backup. Now my issue is this:

Before, I was able to change the files on 1 and applications would be able to start using the new files as long the filename was the same. Now if I change files on 1, applications can keep using old version of the files on remote 2.

Am I doing something wrong or is that expected?

[union]
type = union
remotes = 1: 2:

Are you using the new union code in the latest beta? I'm guessing not... Can you try that?

I'm using rclone v1.51.0-007-g3dfa63b8-beta from curl https://rclone.org/install.sh | sudo bash -s beta

latest beta is v1.51.0-134-g6765303d-beta
perhaps run the command again...

the file version in https://beta.rclone.org/version.txt is rclone v1.51.0-134-g6765303d-beta

Will do later, I assume if I run that rclone command again it will break my current mounts right ?

yeah, i would think so...

ok now I have updated to latest beta, now what?