Events lose vertical offset and overlap after navigating to another date with JSX eventContent

[zhangjett]

Reduced Test Case

https://stackblitz.com/edit/stackblitz-starters-gzvquz?file=app%2Fpage.tsx

Do you understand that if a reduced test case is not provided, we will intentionally delay triaging of your ticket?

• I understand

Which connector are you using (React/Angular/etc)?

React

Bug Description

Screenity.video.-.Jan.16.2024.mp4

Use the React connector,set eventContent with React JSX nodes.
When change view, .fc-timeline-event-harness top style is error.

[acerix]

Thanks, confirmed.

As a workaround, you could force a resize after the date is changed which seems to fix the event positions:

https://stackblitz.com/edit/stackblitz-starters-2t4ktb?file=app%2Fpage.tsx

[arshaw]

Fixed in v6.1.11

@fullcalendar/react was getting tripped up on React strict-mode.

Updated repro:
https://stackblitz.com/edit/stackblitz-starters-fmnrar?file=package.json,package-lock.json