Capcha is not displayed on the registration page that I built with Security Assist.

I work in a local environment and use MAMP. GD library is enabled and FreeType. Privileges are set to All in the database.
I have tried both Firefox, Safari and Chrome but the Security Code does not appear. I have the latest version of DataBridge 2.3.4 installed.

Why doesn't it appear?

It is hard to say.... have you tried viewing the source and looking at the <img> src tag and then browsing that page directly? Maybe that will give an error that would help you determine what is wrong.

It is a very long src code: "../../webassist/captcha/wavt_captchasecurityimages.php?width=200&height=50&field=Security_Code&bgcolor=FFFFFF&transparent=0&bgimage=&gridfreq=20&gridcolor=080808&gridorder=behind&noisefreq=15&noisecolor=060606&noiseorder=behind&characters=5&charheight=&font=fonts/MOM_T___.TTF&textcolor=040404".

When I enter that address in the browser with localhost before, a black page with a small box 16x16 px is displayed in the middle that has a white frame.

What is expected to appear, or not?

I'd have to debug this on the machine where it occurs. Can you try uploading it to a live server so I can get FTP access? That would allow me to debug it directly. Otherwise I can set up a screen sharing session with you in order to debug the problem.

It does not matter. I have googled on Capcha and it seems that it no longer works in Localhost. Of course, I could have uploaded it on the server, but I have thought further.

Instead of the registration page in just did V2 and V4 (I have tried both), I want to create a double opt in. I've followed your tutorial, but it's not up to date. See separate post about this.