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Masking tools (Rectangle/Pen) failing to create transparency or cut-outs in v26.0 on macOS Tahoe

PJ_THAILAND · 2026-01-28T10:43:47+00:00

Issue: All Masking tools (Object, Ellipse, Rectangle, Pen) are completely non-functional in v26.0. Steps to reproduce: Place a White Solid layer on the top track and a Black layer on the track below. Select the White Solid layer and go to Effect Controls to create a mask (e.g., Rectangular Mask). Attempt to apply or adjust the mask on the Program Monitor. Expected result: The White Solid layer should be masked/cut out to reveal the black layer underneath. Actual result: No masking effect is applied. The white layer remains solid and fully visible across the entire frame, despite the mask being active and listed in the Effect Controls panel. Screen recording: https://drive.google.com/file/d/1e4G8IuxjfjYLfaD1DTNwwWUxnRa6qYb0/view?usp=sharing Adobe Premiere Pro version: 26.0 Operating system: macOS Tahoe Version 26.2 System Specs: MacBook Pro 16-inch (2023), Apple M2 Pro Chip, 16 GB RAM.

Forum|Forum|22 days ago
January 28, 2026
2 replies
40 views

Issue: All Masking tools (Object, Ellipse, Rectangle, Pen) are completely non-functional in v26.0.
Steps to reproduce:
1. Place a White Solid layer on the top track and a Black layer on the track below.
2. Select the White Solid layer and go to Effect Controls to create a mask (e.g., Rectangular Mask).
3. Attempt to apply or adjust the mask on the Program Monitor.
Expected result: The White Solid layer should be masked/cut out to reveal the black layer underneath.
Actual result: No masking effect is applied. The white layer remains solid and fully visible across the entire frame, despite the mask being active and listed in the Effect Controls panel.
Screen recording: https://drive.google.com/file/d/1e4G8IuxjfjYLfaD1DTNwwWUxnRa6qYb0/view?usp=sharing
Adobe Premiere Pro version: 26.0
Operating system: macOS Tahoe Version 26.2
System Specs: MacBook Pro 16-inch (2023), Apple M2 Pro Chip, 16 GB RAM.

T

Trent Happel

Community Manager

It does appear that you created an Unassigned Mask. As Ann mentions, you would need to move the Mask to Opacity to achieve your desired results. Hope this helps.