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Chat timeline content overlaps (assistant text + tool call cards stack on top of each other) #1035
Description
Activity
I can confirm this happens in like 1/3 threads for me on version 0.0.11 (macos).
I'll try debugging this to find the root cause and hopefully as fix
Confirmed on
t3npm0.0.11with a real persisted thread, not just a screenshot.Thread:
780c0a4f-3e7d-4596-a4a5-063b45bc38c7The overlapping blocks in the screenshot map to:
- previous assistant row at local
17:33:07/ UTC2026-03-14T16:33:07.639Z
assistant messageassistant:msg_0d1e8eb8814f98d30169b58db6c2748191847993d8d4f31902
turn019ced30-ca88-76e0-9529-9bb68da45211
diff payload has exactly 1 file:v2/mockups/v2_product_configurator_canvas_mockup.jswith+6/-6 - next user row at local
17:35:43/ UTC2026-03-14T16:35:43.425Z
user message4437448c-512b-49bf-814f-f722df59d018
This looks like row underestimation in the virtualized chat timeline, not a cross-thread/message-id collision. Current
mainestimates message height from text only, but assistant rows can also render completion dividers and changed-files trees, so diff-bearing assistant rows can be too short and the next row gets placed too early.
- previous assistant row at local
haven't encountered it anymore
Reacted by shivamThis appears to have been fixed by #1953, can you confirm it? If resolved, please close to help keep the tracker tidy.
yep seems fixed, thanks for reminding me to close this @GuilhermeVieiraDev
Reacted by Guilherme Vieira and shivam
Description
In the chat timeline UI, message content appears to render on top of other blocks instead of flowing vertically.
From the screenshot, assistant text and the
TOOL CALLSsection overlap, making the conversation hard to read and interact with.Steps to Reproduce
Actual Behavior
TOOL CALLScards and nearby message content are visually stacked in the same vertical space.Expected Behavior
Impact
High UX impact: core conversation view becomes difficult to read during normal agent runs with tool calls.