Reproduce:
Debug Editor Mode!!
Step 1: Create a Blueprint named BP;
Step 2: Create child blueprint from BP. Name it BP_Child;
Step 3: Create blueprint struct named Stu;
Step 4: Add a Stu type variable to BP, name it with test. Compile&Save;
Step 5: Open BP_Child, create PrintString node and link it with BeginPlay node.
Step 5: (In BP_Child’s Event Graph)Get test member and split it, link it to PrintString Node’s input string parameter. COMPILE.
Step 7: Open Stu Struct, click ‘new variable’ button. BOOM
Crashed.
Debug Editor Mode!!
