The bug of scheduleOnce not being executed is triggered when scheduleOnce and unschedule are called multiple times.

[wangzhenGitHup]

Cocos Creator version

3.8.0

System information

web windows

Issue description

Repeated calls to scheduleOnce and unschedule significantly increase the likelihood of scheduleOnce no longer triggering. I modified the scheduleOnce function in the engine's source file components.ts to fire on the next frame, which currently resolves this issue. However, I'm unsure if this modification may lead to other problems.

Relevant error log output

No

Steps to reproduce

.

Minimal reproduction project

ScheduleOnceBugDemo.zip

[minggo]

When Scheduler.scheduleOnce() finishes, it will unschedule itself, so the schedule action in callback is unscheduled.

[minggo]

I fixed it by using a special unschedule function for timer to fix it.