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Original AVIF files don't get deleted

[Plugin] Modern Image FormatsIssues for the Modern Image Formats plugin (formerly WebP Uploads)Issues for the Modern Image Formats plugin (formerly WebP Uploads)

[Type] BugAn existing feature is brokenAn existing feature is broken

Status: Open.

#2358 In WordPress/performance;

· joshfester opened on Jan 20, 2026

Transparent backgrounds lost when converting to AVIF under certain conditions

[Plugin] Modern Image FormatsIssues for the Modern Image Formats plugin (formerly WebP Uploads)Issues for the Modern Image Formats plugin (formerly WebP Uploads)

[Type] BugAn existing feature is brokenAn existing feature is broken

Status: Open.

#2237 In WordPress/performance;

· mindctrl opened on Oct 23, 2025

Fix: full-size source file not deleted on attachment removal

[Type] BugAn existing feature is brokenAn existing feature is broken

Status: Open (in progress).

WordPress/performancenumber 2364

#2364 In WordPress/performance;

· adamsilverstein opened on Jan 27, 2026

Prevent transparency loss in AVIF by falling back to WebP on older ImageMagick

[Plugin] Modern Image FormatsIssues for the Modern Image Formats plugin (formerly WebP Uploads)Issues for the Modern Image Formats plugin (formerly WebP Uploads)

[Type] BugAn existing feature is brokenAn existing feature is broken

Status: Open (in progress).

WordPress/performancenumber 2245

#2245 In WordPress/performance;

· b1ink0 opened on Oct 30, 2025