When opus 4.5 is generating a plan, the scroll jumps up and down rapidly, causing me to not be able to read the plan as its generating. It might be due to the mermaid diagrams becoming invalid while its writing.
Steps to Reproduce
Get opus to generate a plan with diagrams
Expected Behavior
Readable, no jumpy scroll
Operating System
MacOS
Current Cursor Version (Menu → About Cursor → Copy)
Yes I believe this is by design, the LLM is streaming the response, lets say 5 words every second and as it is adding that to the plan file, it keeps getting longer, scroll area changes and I am not sure that is something that could be easily fixed, better just wait for it to finish, takes just a little while. And yes likely diagrams are making it much worse. Do you for example watch a regular code file being edited in real time? Does it happen there as well? What I figured is you can watch the plan being generated in a text preview, not markdown preview
Hey thanks for the report. Looks like the team recently worked on several scroll bugs in Plan Mode during streaming - the last fix was on January 8th. Your version is from January 10th, but the fixes might not be fully rolled out yet.
For now the workaround from @liquefy above works - you can open the plan in text preview instead of markdown preview to track generation without jumps.
Can you clarify:
Does this happen with any models or only Opus 4.5?
If you make the same plan now, does the issue reproduce? If yes - copy the Request ID (Chat context menu > Copy Request ID)
This will help figure out if we need a new ticket or if it’s already covered by recent fixes.