All elements are outside the containers after migrating TYPO3 version and gridelements

Question

I am in the process of migrating our website from TYPO3 version 8 LTS to 9.5 LTS.

I have problems with gridelements (old version 8.7, new version 9.81).

Everything is correct in FE but when I add content in BE the tx_gridelements_container, tx_gridelements_columns, and colpos fields are at 0.

All elements are outside the containers (at the top of the page).

The drag and drop works very well.

Any suggestions or changes I haven't seen.

Answer 1

The problem was a TypoScript snippet in our site

TCEFORM {
  tt_content {
    colPos.keepItems = 1,0,2
  }
}

keepItems -1 was missing.