Convergence in $L^{\infty}$ and $L^1$

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Let $f: \mathbb{R}^j \rightarrow \mathbb{R}^j$, a continuous function.

Now, if we assume that $(x_n)_n \subset L^{\infty}([0,1],\mathbb{R}^j)$ that converges to $x \in L^{\infty}([0,1],\mathbb{R}^j)$. We deduce that $f(x_n(t))\rightarrow f(x(t))$ (since $f$ is continuous).

But If we assume that $x_n,x \in L^1([0,1],\mathbb{R}^j)$, do we still have: $f(x_n(t))\rightarrow f(x(t))$ ?

My idea:

Probbaly no, but we have a convergent subsequence $(x_{\phi(n)})_n$ almost everywhere. Hence we have

$$f(x_{\phi(n)}(t))\rightarrow f(x(t)).$$

I want to know if either my statement or my idea are wrong.