Ordering not work some cases

[defisym]

In some cases layer order doesn't update correctly.
My game has a command parser system, in a main fastloop it will read script until it reaches some special ones. Then it will come into phase 2, do the transitions defined in commands that parsed in previous phase.



If current line is a command, it will call another fastloop to iterate all commands then execute the correct one, just like fastloop itself. If objects are created in this routine, an update flag will be set, and when it reaches the special line, engine will stop parsing, call the arrange routine, object order will be updated here.




the order of 过渡元件 ( transition mask object ) didn't updated:



The issue is, in some cases, the order didn't update, aka nothing happens, causes weird bugs.

I can't isolate it in another mfa, everything works fine then, so maybe not something like I'm coding incorrectly (both event and extensin coding), but a bug deep buried in fusion runtime which cannot be triggered easily.
If any stuff has time to check this, please post a reply then I can send the mfa via PM. Thanks in advance.

[defisym]

https://youtu.be/wnUxwarz4h4

Please check the video:
The transition effect disappeared due to incorrect order; it didn't be brought to the front but remains at the back.
Disable snow effect will have no order issue in this case, but ordering shouldn't have any association with it, as the weather effect is just a lot of particles, which is also ordered in order routine, and this shouldn't affect ordering of other objects

If everything works properly, there should be a transition effect between

"^:是啊……"

and

"那对少女而言本不该存在的回应，在此刻，轻轻地消逝在了寒风中。"

as the part of the video shows.