deno: Errors in dynamic imports are not properly caught

Runtime

debian 10
deno 1.6.2
v8 8.8.278.2
typescript 4.1.3

---

//a.ts
import("./b.ts").catch(e=>{
  console.log("caught import b.ts error")
  console.error(e)
})

import("./c.ts").catch(e=>{
  console.log("caught import c.ts error")
  console.error(e)
})

setInterval(function () {
  import("./c.ts").catch((e) => {
    console.log("caught interval import c.ts error");
    console.error(e);
  });
}, 1e3);

//b.ts
// @ts-ignore
import "./b1.ts";
export default () => "error";

//c.ts
// @ts-ignore
await import("./c1.ts");
export default () => "error";

create those files and then run deno run -A a.ts, you will get log like below:

caught import b.ts error
TypeError: Cannot resolve module "file://yourdir/b1.ts" from "file://yourdir/b.ts".
    at file://yourdir/b.ts:3:0
caught import c.ts error
TypeError: Cannot resolve module "file://yourdir/c1.ts".
error: Uncaught TypeError: Cannot resolve module "file://yourdir/c1.ts".

import('./c.ts') first error is caught, but then second import is not caught and it make my program exit