GroupInitiative now crashes the sandbox whenever it reads initiative from a D&D 2024 by Roll20 (Beacon) character. It happens with just one token selected, linked to a Beacon sheet. The same setup last worked on Wednesday, Oct 21. I had no combat sessions in between, and the first failure was Monday, Oct 26. It has failed every time since. To rule out GroupInitiative, I tested with a minimal standalone script. With one Beacon-linked token selected, it runs await getSheetItem(charId, 'initiative_bonus') inside a try/catch. Result: getSheetItem threw: Cannot read properties of undefined (reading 'initiative_bonus') So the failure happens in the API server itself, not in any script. Full error from GroupInitiative (1-click version): TypeError: Cannot read properties of undefined (reading 'initiative_bonus')
at getComputed (file:///home/node/d20-api-server/api.js:773:30)
at getComputedProxy (1-CLICK: GroupInitiative [Tab 25]:40:29)
at Object.func (1-CLICK: GroupInitiative [Tab 25]:440:22)
at 1-CLICK: GroupInitiative [Tab 25]:1341:33
at Array.reduce (<anonymous>)
at 1-CLICK: GroupInitiative [Tab 25]:1324:48
at Array.map (<anonymous>)
at GetBonuses (1-CLICK: GroupInitiative [Tab 25]:1310:31)
at findInitiativeBonus (1-CLICK: GroupInitiative [Tab 25]:1387:23)
at runNextTicks (node:internal/process/task_queues:65:5) This looks like the same regression reported in July 2025: <a href="https://app.roll20.net/forum/post/12441895/possible-new-group-initative-bug-typeerror-cannot-read-properties-of-undefined-reading-initiative-bonus" rel="nofollow">https://app.roll20.net/forum/post/12441895/possible-new-group-initative-bug-typeerror-cannot-read-properties-of-undefined-reading-initiative-bonus</a> . Then, the error came from api.js:674 , and Concentration broke the same way on constitution_save_mod . Any script that reads Beacon computed values is probably affected now too. Setup:
Sandbox: v1.5 2026-08-19 (from the Mod console)
Sheets: D&D 2024 by Roll20 (Beacon) for PCs, 2014 legacy sheet for some NPCs
Mods: GroupInitiative (1-click), Combat Master 2.49
Since the sandbox build predates the breakage, I suspect something that changed between Oct 21 and Oct 26, possibly a D&D 2024 sheet update, rather than the sandbox itself.
Happy to provide more details or a test game if that helps.
