2.4.6版本编辑器，有如下报错Failed to restore delete node Canvas: TypeError: Cannot read property '_onMaterialModified' of null

Creator 2.x
#1

编辑器内编辑报错，报错流程，当你打开一个场景，里面有3d粒子时，打开一个预制体，再打开一个预制体，就会出现Failed to restore delete node Canvas: TypeError: Cannot read property ‘_onMaterialModified’ of null报错

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#2

求回复啊 :sob:

#3

升级cocos到2.4.的高版本