WebP conversion silently stops on new uploads
WebP conversion silently stops on new uploads, so images stay JPG or PNG with no error shown.
Tier I · Proven The best-established problems.
5 public reports · first reported 5 January 2026 · last reported 14 September 2026
What's going wrong
Site owners using this image optimization plugin report that new uploads simply stay in their original JPG or PNG format and never become WebP. Some see the media library note that the file is already optimized, others see no WebP versions appear at all, and some get no clear message explaining why. The problem shows up across different browsers, themes, page builders, hosts, and WordPress versions, often after an update. Because nothing reports the failure, owners only discover it when page speed or storage numbers fail to improve. A monitor or diagnostic service that checks conversion on every upload and explains skipped files would address this gap for many small sites.
AI-assisted: written with the help of AI from the reports.
Products affected
Cimo – Free Instant Image Optimizer & WebP Converter.
Related problems
Who has this problem
2 businesses found.
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