Samsung have released a new version of MirrorLink 1.1. The new version is 1.4.91 and was released on the 28th August 2019. The new version is said to fix issues with disconnections and I must say, MirrorLink is now working on my Galaxy S10 😊👍
To get the update load Galaxy Store, click on the menu (3 dots) in the top right and then click My Page, select Update and you should see it in the list of apps which are available to update.
To get it working on my phone after the update I simply cleared the app data (Settings -> Apps -> Show System Apps) and plugged it into my car.
If you have any problems getting MirrorLink to work then just leave a message down below in the comments and I’ll see if I can help out.