Why does this happen when i try to make slopes?

[MysticNaz99]

When i make slopes sometimes instead of creating a slope in the sector i want the zone builder makes the principal sector a slope, the only solution i know for this is to repeat the entire process of making the slope until it works properly

 

[glaber]

are you sloping the right side of the line? you need to make sure you're using the right side. either the front side or the back depending on the direction of the line.

 

[SeventhSentinel]

See videos 2 and 6 from my series of tutorial videos for all the information you'll need to make slopes.

 

[Othius]

When i make slopes sometimes instead of creating a slope in the sector i want the zone builder makes the principal sector a slope, the only solution i know for this is to repeat the entire process of making the slope until it works properly

Select the linedef with type 704 and press F on your keyboard to flip the lindef, so that the little bar in the middle of the linedef is facing inwards. That should solve your issue. That's also a useful tip to know as it is a very important function of zone building.