Luminar review and how to remove this bar?

[AlexHanson Photos]

Happy holidays friends. Me coming up for air with another question for you. So recently I was reading this article https://www.photographytalk.com/post-processing/9037-luminar-review and decided to download their trial. Actually I was going to download Lightroom, but decided to try this one first.

So far I'm on the fence. Not sure if I'm going to pick it up. There are some cool things I like about this, but some things drive me up the wall. For example. How in the world do you remove this line going through my image as shown in this screen shot here:

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Any idea how the heck to remove that? I have no idea how in the world I got that there.

Thanks in advance!

[HoodedOne]

; = Compare function.

I stopped using LR, because I hate the subscription you need to get updates.
I’m now very happy with DxO Photolabs 2.

[IanBarber]

Looks like split view to me, try clicking the split view icon

[Steven Ruttenberg]

I use PS or Raw Therapee. LR can't handle the size files I have. The subscription is nothing. Like 10 bucks a month for two computers for LR and PS. Plus you can use when off line and dont have to upgrade if you dont want to..