Hi,

I cannot add any blocks, it just hangs there with the loading icon. I'm 100% stuck.

I've tried all browsers, updating, resinstalling, always the same.

I debugged and grabbed the following shots, please help. It seems like it cannot find the add_block php, but it's right there wher eit's looking (confirmed).

This is flat install from 10 mins ago download, no mods, nothing new, no add-ons. When I read about concrete I was excited, but this doesn't help me when the install package or my PC for some reason cannot even load the darn block editor.