Attached test fails verification:

javac --enable-preview -source 25 --add-exports java.base/jdk.internal.vm.annotation=ALL-UNNAMED --add-exports java.base/jdk.internal.value=ALL-UNNAMED Test.java && java --enable-preview --add-exports java.base/jdk.internal.vm.annotation=ALL-UNNAMED --add-exports java.base/jdk.internal.value=ALL-UNNAMED -Xint -cp . Test

Note: Test.java uses preview features of Java SE 25.
Note: Recompile with -Xlint:preview for details.
Error: Unable to initialize main class Test
Caused by: java.lang.VerifyError: Bad type on operand stack
Exception Details:
  Location:
    Test.<init>()V @17: invokespecial
  Reason:
    Type uninitializedThis (current frame, stack[3]) is not assignable to 'Test'
  Current Frame:
    bci: @17
    flags: { flagThisUninit }
    locals: { uninitializedThis }
    stack: { uninitializedThis, uninitialized 12, uninitialized 12, uninitializedThis }
  Bytecode:
    0000000: 2abb 0001 59b7 0003 b500 072a bb00 0d59
    0000010: 2ab7 000f b500 122a b700 16b1

Bytecode looks like this:

  public Test();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=1, args_size=1
         0: aload_0
         1: new #1 // class Test$MyValue1
         4: dup
         5: invokespecial #3 // Method Test$MyValue1."<init>":()V
         8: putfield #7 // Field field:LTest$MyValue1;
        11: aload_0
        12: new #13 // class Test$MyValue2
        15: dup
        16: aload_0
        17: invokespecial #15 // Method Test$MyValue2."<init>":(LTest;)V
        20: putfield #18 // Field field2:LTest$MyValue2;
        23: aload_0
        24: invokespecial #22 // Method java/lang/Object."<init>":()V
        27: return

Making MyValue2 static solves the issue.

Update:

I found an even simpler test (Test2.java) without value classes.

Error: Unable to initialize main class Test2
Caused by: java.lang.VerifyError: Bad type on operand stack
Exception Details:
  Location:
    Test2.<init>()V @13: getfield
  Reason:
    Type uninitializedThis (current frame, stack[1]) is not assignable to 'Test2'
  Current Frame:
    bci: @13
    flags: { flagThisUninit }
    locals: { uninitializedThis }
    stack: { uninitializedThis, uninitializedThis }
  Bytecode:
    0000000: 2abb 0001 59b7 0003 b500 072a 2ab4 0007
    0000010: b500 0d2a b700 10b1