Memory view becomes black for structs with many fields

struct Foo
{
    int f1; int f2; int f3; int f4; int f5; int f6; int f7; int f8; int f9; int f10;
    int f11; int f12; int f13; int f14; int f15; int f16; int f17; int f18; int f19; int f20;
    int f21; int f22; int f23; int f24; int f25; int f26; int f27; int f28; int f29; int f30;
    int f31; int f32; int f33; int f34; int f35; int f36; int f37; int f38; int f39; int f40;
    int f41; int f42; int f43; int f44; int f45; int f46; int f47; int f48; int f49; int f50;
};

int main(int argc, char *argv[])
{
    Foo foo;
    return 0; // break here
}