Long text gets cut off and bottom content disappears in the editor #8874

Description

When the editor content becomes large (many lines of text), opencode starts cutting the content, causing the bottom part of the text to disappear. It’s not possible to scroll to the end, and the missing text is not visible or accessible.

This happens even though the cursor continues moving correctly — visually, the content is simply gone.

Plugins

No response

OpenCode version

1.1.23

Steps to reproduce

1. Open opencode
2. Start typing or paste a large block of text (many lines)
3. Keep adding more content
4. Notice that after a certain point, the bottom text disappears

Screenshot and/or share link

Operating System

WSL (Ubuntu)

Terminal

WSL (Windows terminal)