Amazon have a Black Friday deal running for both the Photography Plan (20GB) and the Lightroom 1TB (cloud) subscriptions. They are currently 33% discounted!!!
You can add the year you purchase (currently just £79.99) to the end of your current subscription (must be the same plan type). I just...
On Mac it's Control + Option + Return, I assume similar on Windows (Alt instead of Opt)
It's far better that way as you're not relying on a number of spaces to determine the layout (which gets messed up if you change the column width)
The DNG is unprocessed, whereas the JPG is processed by your camera. So it's entirely logical it'll look different. But you now have the power to do a lot more in processing using the DNG than the JPG.
See page 11 of your Classic FAQ.
This blog is a really old one, but the principles are...
Practice makes all the difference. It's actually quite amazing what you can do with the Healing brush, sometimes with a combination of small cloning (for example when the edge is close to another object) then healing for a larger area.
Your initial screenshot showed the Masks open, rather than the Healing Brush.
It sounds like you have it set to Heal rather than Clone. Clone does a clean copy whereas Heal tries to blend. It depends on the object as to which is best - try Clone (it's just the dropdown when you have the Brush...
Okay, so it isn't available on iPad to my knowledge, but Shift + Drag works on the Desktop.
With the Brush, click on the photo, then hold Shift and drag to your end point.
I appreciate that's different to Classic where you can hold Shift first.
I'm not a Windows person, and someone with Windows experience may well be able to offer some advice.
But to my thinking this sounds like a bug with Lightroom, and worth logging with Adobe: