TYPO3 v10: Form inside a bootstrap grid is not being rendered.

[tuberlinapp]

I have tested it with TYPO3 v10.4.9 and the form_formframework of TYPO3.
Created a default form, choosed "4 columns" grid and placed it in the first column.
The form inside the grid is not being rendered.
When putting the form element outside of the grid, the form is rendered.

[prdt3e]

A similar (might be the same) problem exists when inserting a plugin from the news extension (e.g. the news list element). All settings configured in the flexform are not passed to the contentelements themselves - they are available in e.g. {columns.101} starting with "flexform_settings" but are lost somewhere on the way down to the actual content element. The same issue persists with other column templates (for example 2cols). Maybe that helps tracking down the issue.

[prdt3e]

@tuberlinapp after digging deeper into the issue I randomly stumbled across a gitlab issue in the gridelements extension. Ultimately, setting tt_content.gridelements_pi1.dataProcessing.10.default.options.resolveChildFlexFormData = 0 in the setup variables fixed the problem for me (extbase plugin settings aren't passed properly without this setting). Maybe that helps in your case. So this isn't an issue with bootstrap_grids.