Chain of `OpAccessChain` starting with a `PhysicalStorageBuffer` to an `OpTypeStruct`, ending in a non-composite causes a GPU Assisted Validation error

[16-Bit-Dog]

Environment:

• OS: Windows 11
• GPU and driver version: RTX 5060, driver version 591.44
• SDK or header version if building from repo: 1.4.335.0
• Options enabled (synchronization, best practices, etc.): GPU Assisted Validation, shader-instrumentation (Safe Mode is disabled).

Describe the Issue

The following Slang code triggers a GPU-assisted-validation internal-error with the comment "FindOffsetInStruct has unexpected non-composite type":

struct Data {
    int32_t x;
}
uniform Data* bda;
[numthreads(1,1,1)]
void main() {
    bda[0].x = 1;
}

The shader still runs as expected, but we still receive what seems like an incorrect validation error.

Expected behavior

An error is not expected since the offending SPIR-V looks valid:

         %59 = OpLoad %_ptr_PhysicalStorageBuffer_Data_natural %58
         %60 = OpPtrAccessChain %_ptr_PhysicalStorageBuffer_Data_natural %59 %int_0
         %62 = OpAccessChain %_ptr_PhysicalStorageBuffer_int %60 %int_0
                    OpStore %62 %int_3 Aligned 4