Imported backround and problems with levels

[Egretta]

Hi, please do you know where is the problem? I imported the scan of the real plan ground floor and built the wals. In the first floor I can also move with the wals from the ground floor and it is wrong. I can´t cath the walls from the first floor properly, they mix together with the ground walls. When i did floors withhout the imported backround of the plan, its ok. In every floor I can move only with the walls, which are built on the concrete level.

Thank you for any idea!

[Keet]

The problem is most likely incorrect wall/level heights.

Set the level height of level 0 to the same height as your walls on level 0 (right click on the level tab to edit level properties).
Check the floor thickness you have on level 1. Level 1 elevation must start at the height of level 0 + the floor thickness.

Example:
level 0: walls 250 high, set level height 250
level 1: walls 250 high and floor thickness 20: level 1 elevation 250+20=270, level height 250.