Lldb debugger does not show indicator when hitting breakpoint on Mac

Steps to reproduce:

• create a simple Qt project (used the GUI template from project wizard)
• use a kit which uses lldb
• set some breakpoints and start debugging

Current behaviour:

• breakpoints get hit, but the panel on the left of the editor has no more markers (breakpoint bubbles or the arrow indicating the line)

Expected behaviour:

• bubbles and arrow would be displayed as they are when using gdb instead