--- title: "Troubleshooting & FAQ" date: 2026-07-24 author: "Claude MCP" --- # Troubleshooting & FAQ Answers to the questions we hear most often about the Custom Fields plugins. The first section applies to all 5 plugins, the rest is grouped per plugin. ## General ### My field doesn't show anything on the frontend Check these three things in order. First, the field itself needs a value, an empty field never renders anything. Second, open the field's edit screen and check the "Show on" setting under the Field tab: it needs to include the view where you expect it (Category & Article List, and/or Detail Page). Third, the article and its category both need to be published, an unpublished item hides all its fields along with it. ### What's the difference between FREE and PRO? All 5 plugins follow the same pattern: the field itself, and the value you enter, always work in FREE. What changes between FREE and PRO is how much you can style and configure the result. In FREE, most fields render with a fixed set of sensible defaults and no options screen. PRO unlocks an Options tab per field with the styling and behavior settings described below. ## QR Code ### Why can't I change the size, color or shape of my QR code? In the FREE version, the QR Code field has no configurable options at all: it always renders a black-on-white square code at a fixed size, using the current field value as the QR content. Size, color, background color, shape, alignment, and download buttons are all PRO-only. ### Can visitors download the QR code as an image? Only in PRO. The Download option lets you offer a PNG, an SVG, or both, and only appears once you've enabled it, the download image size then becomes editable underneath it. ## Spotify ### What does "Player Color" actually change? It switches the embedded Spotify player between its White and Dark visual theme, it isn't a free-form color picker. If you're looking for full color customization, that isn't something Spotify's own embed supports. ### Why don't Width, Height or Align do anything? Those three only apply in Classic mode. In Responsive mode the player fills its container automatically, so fixed dimensions and alignment don't apply. ## Vimeo ### Is "Do Not Track" a PRO feature? No, it's available in FREE as well. Turning it on sends Vimeo's privacy signal to not track the visitor's viewing behavior, useful if you're being strict about cookie/privacy compliance. ### What's the difference between Classic and Responsive mode? Classic mode uses a fixed width and height that you set yourself, available in both FREE and PRO. Responsive mode (PRO only) scales the player to its container and uses an aspect ratio (16:9 or 4:3) instead of fixed dimensions. Title, byline, portrait and player color are additional PRO-only options that apply regardless of mode. ## YouTube ### Why does my video keep loading in Classic mode with basic controls? FREE only offers fixed width/height and a Privacy-Enhanced Mode (no-cookie) toggle. Everything else, responsive sizing with an aspect ratio, Lite loading, autoplay, mute, hiding controls, player color, branding, fullscreen, related videos, captions, inline playback, looping, and start/end timestamps, is PRO-only. ### What does "Lite" mode do? It loads a lightweight thumbnail placeholder instead of the full YouTube player, and only loads the real embed once a visitor clicks it. Useful for page speed on pages with several videos. ## User Dropdown ### What can I do with the FREE version? FREE shows a single-select dropdown listing every user on the site, sorted by name, username or ID, with the option text showing the name, username, or both. ### How do I limit the list to specific user groups, or let visitors pick more than one user? Both are PRO-only. PRO adds a user group filter (either specific groups, or automatically the current visitor's own groups), a separate display format for the selected value, and a multiple-selection mode with a configurable separator (", " by default) between the chosen names.