not stable enough

hi im trying to stack some chests and getting a message on stone floors that its not stable enough. do i need some walls to support them?

use right click

on my mouse yes i do. Thats when it telling me thats it not stable enough

11 minutes ago, Norse Viking said:

on my mouse yes i do. Thats when it telling me thats it not stable enough

 

That's not possible, testing in a sec and will let you know.

29 minutes ago, Norse Viking said:

on my mouse yes i do. Thats when it telling me thats it not stable enough

 

Stop using left click, use right click

10 minutes ago, supreme said:

I have just checked that i have the permissions correct, and im trying to use my right mouse button, but getting the error messages stil. even on stone fundaments. ill unninstall the plugin and try to reinstall it again.

There is no error message when pressing the right click, the message only appears for the left click since there is a server side check upon placing