Solved Module settings toolbar not appearing when I click on text

I'm editing a page developed by another user.
When I click on one Divi text module a black toolbar is displayed with the cog icon (Module settings) as the first item - I can then edit the text. This is shown in the attached image.

On an adjacent Divi text module no matter where I click on it, I cannot get the black toolbar to appear.

Can you please suggest what I'm doing wrong. Thanks.

 

The problem is when I move the cursor to the text box starting "One of the …" and click I cannot get the black toolbar to be displayed. I can get it to be displayed on the title above and on the image to the right. I don't know why I can't on that specific module. I'm not sure if there is a specific part of the text module I have to click. The text module will turn grey but when I click on it if nothing happens.

 

Before I try that - how do I access the Builder Settings?
Thank you.

 

Probably - how do I get that menu bar to appear?

 

Thank you - I see that 'button' is at the bottom of the page. I can now see the different modes.

I wondered if the reason I could not edit the text module was because it was locked by the administrator.
Is there a way I can check is a module has been locked?

I could edit a similar text module on an other page, therefore I copied that row, pasted it, edited it and deleted the row that did not work. Therefore I worked round it.

 

Thanks - it cannot be locked then.

 

After some more investigation I wonder if the reason I cannot edit some modules is because of the Role Editor. The Role Editor has only allowed me access to certain basic module types. When I go to create a new module only 4 types are available text, button, image & gallery - I know that one of the modules I was trying to edit were 'Call to Action'.
Do you think this is the cause of the problem?

 

I'm the Role Editor and it is now OK.