Some versions of wet-boew breaks flex/slick sliders.

Things seemed to have improved with wet-boew.js version 4.0.74 included with WxT 5.2.2

I recommend upgrading and testing the latest wet-boew.js

A related issue I marked as fixed, it's working now with 4.0.74
#3346753: Latest (4.0.50.1) wet-boew breaks multiple features →

Here's a script that quickly allows you to test the latest wet-boew.js

Alternatively, upgrade from wxt 4.x/5.x to 5.2.2+

#!/bin/bash

if [ -d "html/libraries" ]; then
  echo "Begin upgrade of wet-boew from 4.0.43 to 4.0.74."
  pushd html/libraries;
  rm tmp -rf;
  mkdir tmp;
  pushd tmp;
  wget https://github.com/wet-boew/wet-boew/releases/download/v4.0.74/wet-boew-dist-4.0.74.zip
  unzip wet-boew-dist-4.0.74.zip
  mv ../wet-boew wet-boew_orig
  mv wet-boew-dist-4.0.74/wet-boew ../
  popd
  rm ../libraries/tmp -r;
  popd;
  echo "End of upgrade for wet-boew 4.0.74."
fi

needs review, but I think this is fixed by 4.0.74 as mentioned above, see comment #15