Error on charts : wrong wording in pop-up

Hello, I try to concat 3 chart in one. But when I mouse over a point, wording is wrong and really strange. I don't find the way to change this. Can you help me please?

What I have :

What I want in the pop up :
Compte : 5
Mois : 1

Hi @zolora
I don't know what you mean by "concat", but I'm guessing you are combining several questions on a dashboard.
Post "Diagnostic Info" from Admin > Troubleshooting. Latest release is 0.44.1

Yes, I use the "Edit data" and add two questions.
Like this :

{
"browser-info": {
"language": "fr",
"platform": "Linux x86_64",
"userAgent": "Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Firefox/91.0",
"vendor": ""
},
"system-info": {
"file.encoding": "UTF-8",
"java.runtime.name": "OpenJDK Runtime Environment",
"java.runtime.version": "11.0.16+8-post-Debian-1deb11u1",
"java.vendor": "Debian",
"java.vendor.url": "https://tracker.debian.org/openjdk-11",
"java.version": "11.0.16",
"java.vm.name": "OpenJDK 64-Bit Server VM",
"java.vm.version": "11.0.16+8-post-Debian-1deb11u1",
"os.name": "Linux",
"os.version": "5.16.0-0.bpo.4-amd64",
"user.language": "fr",
"user.timezone": "Europe/Paris"
},
"metabase-info": {
"databases": [
"h2",
"mysql"
],
"hosting-env": "unknown",
"application-database": "h2",
"application-database-details": {
"database": {
"name": "H2",
"version": "1.4.197 (2018-03-18)"
},
"jdbc-driver": {
"name": "H2 JDBC Driver",
"version": "1.4.197 (2018-03-18)"
}
},
"run-mode": "prod",
"version": {
"date": "2022-06-27",
"tag": "v0.43.4",
"branch": "release-x.43.x",
"hash": "61cc28e"
},
"settings": {
"report-timezone": "Europe/Paris"
}
}
}

@zolora You can change column names by hovering the card on dashboard > Visualization options.

When I put blank field like this :


I have right labels in pop-up, but as soon as I add a caption they become wrong. Moreover I have already filled in "labels" with what I want
Capture%20d%E2%80%99%C3%A9cran%20du%202022-08-17%2016-54-43

@zolora I don't understand what you are trying to do, but Metabase does not support split Y-axis configuration (https://github.com/metabase/metabase/issues/3897), and only gets information from the first question to define the combined chart (https://github.com/metabase/metabase/issues/17943).
There's no simple solution for those.
Create a single question, which contains all the data instead of combining multiple questions, that's likely the only solution.

Okay thank you for your help