Should I update?

Should I update Lightroom Classic?

Lightroom Classic 15.3 · Fixed bug

Filmstrip thumbnails show black or white borders

Fixed in Lightroom Classic 15.4, according to Adobe’s release notes. The bug was reported for Lightroom Classic 15.3. It happens on Windows only.

Status
Fixed in 15.4
Severity
Minor
Affects
Common workflow
System
Windows only

The fix · Lightroom Classic 15.4

“While running background AI operations, white and black borders appear around Filmstrip thumbnails.”
Adobe’s release notes

Timeline

  1. Apr 17, 2026Reported on Lightroom Classic 15.3
  2. Jun 18, 2026Fixed in Lightroom Classic 15.4per Adobe’s release notes

The report

15 votes · 20 replies

Reported on Windows by 4 people (from the report and 20 replies).

“P: Black border in Filmstrip after installing 15.3”

Read it on the Adobe Community board
Should you update Lightroom Classic today?Today’s verdict for Windows and macOS, and every known issue behind it.

Based on public bug reports on the Adobe Community board. Last changed October 6, 2026. The title and rating are ours; the report is the reporter’s. Not affiliated with Adobe.