v1.14.21 Desktop: Extreme lag, erratic behaviour, cannot stop task, cannot restart, cannot start new task #23968

Description

Upgraded to v1.14.21 which shows erratic behaviour that is potentially difficult to reproduce. I have no idea how I could describe that a bug, see below for the steps I took. This all happened after having upgraded to v1.14.21.

• I cannot stop a running task
• not even restarting seems to help
• OpenCode might open many new sessions for the same prompt

Using OpenCode with the github/Claude Sonnet 4.6 model.

Can rule out local networking issues, I just measured I have ~230mbit of bandwidth available.

Looks as if OpenCode resumes after a restart, but there is no way to stop a running task.

Plugins

speckit

OpenCode version

v1.14.21

Steps to reproduce

• I sent a prompt, nothing happened for more than half an hour.
• OpenCode would not stop even when clicking the Stop button
• Decided to restart, obviously it tried to pick up where it left off, but could not stop execution either
• Decided to restart my PC which did not help
• Tried creating a /new session. Worked, but I could not send my prompt and OpenCode eventually froze
• Tried again, same behaviour (maybe tried a third or fourth time)
• After several minutes, OpenCode had opened 12 new sessions for the prompt I had tried to send minutes earlier (I haven't tried 12 times, processing all at the same time
• Tried to restart, it looks as if only the first of these sessions is actually working. I can't select any other session
• OpenCode eventually froze again
• After a restart I tried deleting the sessions, the Delete dialog stays open, nothing happens when clicking on "Delete session".

Screenshot and/or share link

All of them seem processing, cannot stop a single one.

Operating System

Win 11

Terminal

Windows Desktop