TYPO3 Core

We have an TYPO3 V10 installation with 4 languages. German, english, french and chinese.
The default language is german. The fallback language for chinese, which is defined in the site module, is english.

In our Extension, the main objects are translated in all languages. All subobjects are linked via the TCA with «'l10n_mode' => 'exclude'». Those subobjects are translated as well and contains some files. Only the chinese subobjects are not translated, bacaus there are no chinese files at all.

In the frontend the german, englisch and french files are displayed correctly, because they are translated. But in the chinese version, we always get the german files (default language), even though the fallback language is set to english.