Pc BUG inside bulding disappears at hightess tower on foundation

Game mode: [Online | ]
Problem: [Crash | Bug | Performance | Misc]
Region: [europe official server pvp 1154]

[Free text]
we have create a base full t4 up the hightess tower in the game i create all foundament at the first floor have create all station work, yesterday we have upgrade all foundament t4 and today we not have the station and thralls in here pls fix we cant make a bulding inside -.- OMG!

Steps on how to reproduce issue:
1.all bulding inside first floor disappears
2.all stability inside foundation is 100 and the wall is 100

up up up up where is the game master or another ?