curl -XPOST -H 'Content-Type: application/json' 'localhost:9200/events-training_debug_image-*/_update_by_query?conflicts=proceed' -d'{
    "script": {
        "source": "ctx._source.url = ctx._source.url.replace('http://<MY_OLD_ADDRESS>', '

.<NEW_ADDRESS>')",
        "lang": "painless"
    },
    "query": {"prefix": {"url": {"value": "http://<MY_OLD_ADDRESS>"}}}
}'

I figured it was something with syntax but I thought single ticks inside double quotes should work without escaping 😀

@<1722061389024989184:profile|ResponsiveKoala38> It fixed the issue!

@<1722061389024989184:profile|ResponsiveKoala38> Now I can see the images where previously it was placeholders with text "Unable to upload the images"

Can you please share it as a text
It is indistinguishable visually but I want to make sure that each single quote is replaced with single quote slash single quote single quote
and not single quote slash double quote