Compilation Error with Predicate.isNotNull in effect v3

import { Effect, pipe, Predicate, Data } from "effect";

type Result = {
  a: number;
};
class MyError extends Data.TaggedError("MyError") {}

declare function getResultOrNull(): Effect.Effect<Result | null>;
declare function getNumberOrNull(): Effect.Effect<number | null>;

const predicateOkWithPrimaryType = (): Effect.Effect<number, MyError> => {
  return pipe(
    getNumberOrNull(),
    Effect.filterOrFail(Predicate.isNotNull, () => new MyError()),
  );
};

const predicateIssueWithComplexType = (): Effect.Effect<Result, MyError> => {
  // Error described below happens here on the return line
  return pipe(
    getResultOrNull(),
    Effect.filterOrFail(Predicate.isNotNull, () => new MyError()),
  );
};

const functionOK = (): Effect.Effect<Result, MyError> => {
  return pipe(
    getResultOrNull(),
    Effect.filterOrFail(
      (r: Result | null): r is Result => r !== null,
      () => new MyError(),
    ),
  );
};

Type 'Effect<NoInfer<Result | null>, MyError, never>' is not assignable to type 'Effect<Result, MyError, never>'.
  Type 'Result | null' is not assignable to type 'Result'.
    Type 'null' is not assignable to type 'Result'.