Toolbars can become stacked vertically for no apparent reason. The stacked tool bars are due to the unmaximized window of being quite narrow. Solution is to:
1) unmaximize
2) mouse drag vertical edges of app window to expand near full screen
3) arrange toolbars as desired, then exit.
On restart, toolbars should retain horizontal arrangement.
Altair Employee
Hi Peter, As of now there is no option to assemble the jumbled toolbars. We need to wait for this option to be included in new releases.