Took a screenshot from the forums since I wasn't on time to printscreen my own example:
{F8322}
There's a 3rd line:
```
This will overwrite any installed mods.
```
It obviously has a display issue, but it should never be there in the first place.
I managed to reproduce it just once after updating to key 147 but at least I know what it is caused by.
It happens only when you switch to a build and the launcher does
```determining files to download```
before you even pressed the update button.
This causes the 3rd line to not get removed.
Since I only managed to get that once, I'm not putting it in queue yet.