When using Prettier v12.1.1 together with ESLint, incorrect code deletion occurs when removing lines of code

[LostElkByte]

Prettier Version: 12.1.1
ESLint Version: 3.0.20
Framework: Vue 3 (Setup Script)
Operating System: macOS 15 / 26.2

Steps to reproduce

1. Write code containing a computed array in Vue 3 (see Input Code example below)
2. Attempt to delete a single line (e.g., delete const { t } = useI18n())
3. Trigger Prettier + ESLint auto-formatting (save file / manual formatting)
4. Notice that the line below the deleted line is incorrectly removed
5. This issue does NOT occur when rolling back Prettier to version 11.0.2

Input Code

<script setup lang="ts">
const { t } = useI18n()

const menuItems = computed(() => [
  { title: t("menus.mockGuide"), route: "/demo/mock" },
])
</script>

Actual Output

<script setup lang="ts">

  { title: t("menus.mockGuide"), route: "/demo/mock" },
])
</script>

Expected Output

<script setup lang="ts">

const menuItems = computed(() => [
  { title: t("menus.mockGuide"), route: "/demo/mock" },
])

</script>

[fisker]

Transferred from https://github.com/prettier/prettier

[colaquecez]

lint.mov

Same here, I needed to downgrade the prettier version.

[Somnus007]

Same issue. It may accidentally delete lines or characters. This still happens in v12.3.0.

[paulswan]

I have the same issue. I needed to downgrade to v11.0.3 to prevent it.

[lvzhenbo]

#3937 This PR does not fully resolve the issue; the problem of repeated formatting persists.

[l246804]

+1

[torsten-ueckert]

Why are all but the first comments in this bug "hidden as spam"?

[torsten-ueckert]

As this is bug is a real downer and potentially a source of true bugs if it just happens to delete code in the wrong place, is there any update on this?

[Vorobeyko]

I downgraded the version to 11.0.3, and everything works fine for me.
I also confirm that when using the plugin together with ESLint, Prettier breaks the code by removing lines or characters.

Screen.Recording.2026-01-27.at.00.32.48.mov

[fisker]

There is another issue about code been deleted, prettier/prettier#18769 I'm not sure if they are the same problem, because user says that different Prettier(NPM Prettier package, not VSCode extension) behave differently.