Interface failure after Unreal engine upgrade

Dear Epic team!
At present, I Encounter a painful problem (I’ve been struggling for a week), so I need your help. The response of uskeletalmesh:: posteditchange and uskeletalmesh:: postload interfaces in the latest version 4.26 has changed,

As a result, the geometric information of model preprocessing model data is not updated in real time as expected, and the functions supported by version 4.20 are upgraded to 4.26, which directly fails.I want to know whether there are other solutions besides backing back version 4.20?

Looking forward to your reply, thank you very much!
AlexJialin