# NousResearch/hermes-agent · TUI virtual history offset and cache bugs

## Open now

- Nothing open on GitHub.

These issues and fixes address bugs in the TUI related to virtual history offset search bounds, cache reuse causing blank transcripts, and render-mode not being included in virtual row keys leading to height cache drift.

## TL;DR

- 4 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 2 PR(s) closed without merging.
- A fix was merged to main in PR #20872. Verify it addresses your case.
- **Recommended:** read PR #20872 (and any competing PRs below) before filing. Confirm the merged change covers your symptom.

## Maintainer resolution verdict

- Internal-tracker verdict over this cluster's issue members: `resolved` · deciding PR(s): `pr-20872`. This is distinct from the fix status above. Weigh it yourself.

## How this cluster was grouped

- Link evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
- Pairwise link density `0.50`: the share of member pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36. `1.00` means every pair is linked.

## Closed / duplicate issues

- #19944: Bug: TUI transcript can blank after virtual history offset cache reuse

## Prior & competing PRs

- **#20872: fix(tui): bound virtual history offset searches**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `ui-tui/src/__tests__/virtualHistoryOffsetCache.test.ts`, `ui-tui/src/hooks/useVirtualHistory.ts`
- **#19948: fix(tui): include render-mode in virtual row key to prevent height cache drift**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `b0af1d093`, `#19944`, `#20872`, `#20336`
- **#20336: fix(tui): bound virtual history offset searches**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `#20872`

## Fix status

- Merged to main in PR #20872 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-05-06`.
- Subsystem: `other`