script that uses xclip not working from keyboard shortcut

Output of uname -a: Linux negosaki 5.11.0-46-lowlatency #51~20.04.1-Ubuntu SMP PREEMPT Fri Jan 7 08:04:34 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

I have the following script in ~/bin/flameshot-ocr, which is in my path:

#!/usr/bin/env bash
function ocr() {

filename=$1
lang=$2
outfile="/tmp/tesseract-output"

tesseract "$1" $outfile -l "$2"
cat "$outfile".txt
}

save_path="/tmp/flameshot-screenshot.png"
lang=$1

flameshot gui -r > "$save_path"
output=$(ocr "$save_path" "$lang")
echo "$output"
echo "$output" | xclip -selection clipboard
yomichan-search
exit 0

The yomichan-search command is just another command I have in my path which uses xdotool to bring a program I use to focus. Basically, the script uses flameshot to prompt me for a cropped screenshot, then saves that screenshot to /tmp/flameshot-screenshot.png, and then uses tesseract with the provided language option to perform ocr on the image, and saves the result in /tmp/tesseract-output.txt. Then, I use xclip to copy this output to my system clipboard. This all works when I run the script from my terminal, e.g. flameshot-ocr jpn_vert. However, when I run it with a keyboard shortcut (the command flameshot-ocr jpn_vert, only part of the script runs: I get prompted for a screenshot, the screenshot gets saved, tesseract is run on it, but the output does not get copied to my clipboard (xclip fails), and my yomichan-search script doesn't run. For reference, here is my yomichan-search script:

#!/usr/bin/env bash
if [[ $(xdotool search yomichan)  ]]; then
    xdotool search yomichan windowactivate
else
    /opt/google/chrome/google-chrome --profile-directory=Default --app-id=dmlhnpobnomcmidkoijomppdlpfkedmi
fi

I have verified that a simple command like echo "hello | xclip -selection clipboard" works when I run it from my terminal, but not from a keyboard shortcut, and I have tried sh -c 'echo "hello" | xclip -selection clipboard' in the keyboard shortcut, which does work, but a keyboard shortcut like sh -c 'flameshot-ocr jpn_vert' just does the exact same thing as when I didn't wrap it in sh -c.

Does anyone know how to fix this?