Form Design toolbar not always visible, as I want

Hi, everybody

I am designing a form in Writer and I want to have the Form Design visible all the time, even if I’m just writing the auxiliary text outside a control, but inside the document that is the form. Obviously, I have it docked to my work area (using toolbar options).

But if I move the cursor to selecting a control (!) or some text (hence, part of a form), this toolbar disappears. This is very annoying!

Is this normal behavior, or should I file a bug?

I’m in Manjaro Mabox (a version of Manjaro with Openbox and GTK widgets).
I’m using Tabbed Compact UI, but this also happens even if I’m in Standard UI.
Version: (X86_64) / LibreOffice Community
Build ID: 60(Build:3)
CPU threads: 8; OS: Linux 5.4; UI render: default; VCL: gtk3
Locale: es-MX (en_US.UTF-8); UI: es-ES
Calc: threaded