Loose code or trash code

[wmeson]

Hello again with a problem.
I have a web page with 5 pages, some have an HTML add-in tool with code, some are inserted in the header section, others within the design grid.
On some pages, when exporting, the code disappears or writes a junk code impossible to execute correctly.
Why? ... I have the 15.2 version for 64 bits, Windows 10 in Spanish, 8GB memory and 500GB hard drive with enough space. This happened to me with other versions of the program and on other computers. Thank you

[BaconFries]

If you require help please provide a url so we can view and then assist you. Or provide a copy of the project so we can view and provide a answer. With this said it may be that you have inserted invalid code (PHP) incorrectly and if so the page extension must be set to .php and not .html