Try without passing the true argument to get_previous_post() function, because that paramters is used to get link of previous post of same category. Possibly you’ve not registered the category taxonomy while registering that custom post type.
Related Posts:
- previous / next post with thumbnail
- Is it possible to nest get_previous_post()?
- Tweak next_post_link for it to include thumbnail
- Show prev and next post links for parent post of current image in attachment page?
- Showing Thumbnail from Previous and Next Posts
- Featured Image Link to next post?
- How do I regenerate thumbnails?
- Add Title Attribute to WordPress Image the_post_thumbnail
- Replacing Gutenberg Featured Image control?
- oEmbed, thumbnails and wordpress
- the_post_thumbnail scaling not hard cropping
- Featured Image Inherited from Parent Page
- Problem excluding category from get_next_post
- Change wording of default thumbnail metabox
- Specific featured image for each category
- how to pull images with no add_theme_support(‘post_thumbnails’)
- Can WordPress crop only the post thumbnails?
- Query the post which have a thumbnail
- How to show a featured image as current?
- How can I get a different image size, if all I have is the link?
- Show current page featured image in sidebar
- Importing featured image to posts, duplicates the image
- How do I set a featured image (thumbnail) by image URL when using wp_insert_post()?
- Use post thumbnail as div background
- How do I set the default “feature image” size?
- Change post thumbnail using front end post edit form
- Featured image thumbnail sometimes in content, sometimes changes header images
- Function to replace the url of featured images in the wordpress database?
- has_post_thumbnail gives always TRUE
- Displaying wordpress image size as array used for page builder
- Setting a default placeholder image WITHOUT link
- If I Regenerate Thumbnails, would WordPress delete the existing Thumbnails and replace them with ‘new copies’?
- how to use first post image as thumbnail on wordpress
- Make the first image the post thumbnail without setting it as the featured image
- set a chosen image-file-input as a featured image from wp frontend
- Aligning the thumbnail image
- How do get post thumbnail into plugin?
- Default Featured Image from Post content
- Previous/next post links displaying wrong category than is desired
- upload or auto setup feature photo by user avatar
- How to replace featured image upload option with the post media image option
- How to create resized versions of images added with wp_insert_attachment
- Can I insert the feature image inside the content, after any paragraph?
- Set Post Thumbnails in Percents
- WordPress returns old thumbnail size after changing media settings
- get_the_post_thumbnail() returns nothing?
- How to bring files from the upload directory to the media gallery?
- Image with large file size not cropping
- What can I do if I set a gif as featured image? no thumbnail when i share on facebook
- Can’t get post thumbnail to display in foreach loop
- Child Category Image
- Resizing thumbnails retrospectively
- upload image only
- How Do I Create A WordPress Secondary Featured Image Without A Plugin? [closed]
- Generating very small sized thumbnails from featured image
- a tricky question about featured image
- Get ID for previous/next image link
- Pagination for custom loop on custom page template is not displaying anything
- Is wordpress compressing my images? if so, how to prevent it?
- Getting featured image with direct $wpdb within plugin
- WordPress get_categories & listing recent post thumbnail
- Edit Media – Edit Custom Sized Featured Images
- Custom Posts and Posts – next_post_link and previous_post_link not working together
- using images in next/previous_post_link [closed]
- set_post_thumbnail_size not cropping featured images
- Making featured image to show on home page
- Multi post thumbnails doesn’t return anything
- featured images twenty eleven theme
- Picture inserted in the post not showing in “Gallery”
- featured image is not showing
- Include “Scheduled” (“Future”) Posts in WordPress Post Navigation ( previous_post_link, next_post_link ) for a Specific Custom Post Type
- How to change the format of thumbnails into wordpress theme?
- How to calculate the sum of all featured thumbnail height on WordPress?
- How to create thumbnails programmatically?
- next_posts_link not visible on first page
- Usage of add_image_size (for featured image)
- Featured image: Dynamic image sizes when enlarged with javascript
- How to Navigate within Category? Lot of codes here on stackexchange didn’t work
- Smaller Size for featured images
- Featured image doesn’t appear in Blog index
- How do I use the add_query_arg function in a template tag like previous_post_link?
- Remove Featured Image based on Date
- How to show only 2nd featured img on home/blog
- Echo recent posts each with its own respective featured image
- How to get post thumbnail to be equal to set media size
- Add notice to add image popup
- Mass/Bulk assign featured images to posts
- customize urls displayed by previous_post_link and next_post_link
- Single post navigation Previous post link shows up but Next post link doesn’t
- setting featured image is not working while running script in background, works when running that script from browser
- How to modify responsive images in post thumbnails
- get_the_post_thumbnail() – Invalid argument supplied for foreach() in /wp-includes/post-thumbnail-template.php on line 64
- Different thumbnail size than actual picture in post
- How to get the featured image inside of a single-.php template?
- Where is the template from the_post_thumbnail()?
- Get Post Thumbnail Outside of Loop
- Theme:Twenty Fourteen, How to remove featured image on single post page for particular category
- Next/previous post link to posts only within one or more specific categories
- Why not attaching images after impoting using wp cli
- How to add thumbnail support to WordPress next / previous post loop?