[next-mdx-remote] error compiling MDX: Could not parse expression with acorn: Expecting Unicode escape sequence \uXXXX 95 | $$ 96 | \begin{aligned} > 97 | exp(\phi^{\wedge})exp(\Delta\phi^{\wedge}) \approx exp((\phi+J_r^{-1}\Delta\phi)^{\wedge}) | ^ 98 | 99 | \\\\[1ex] More information: https://mdxjs.com/docs/troubleshooting-mdx