TYPO3 Core

I have on website running on 2 systems, dev and live. On the dev system indexed_search works like expected. On the live system not all pages are indexed.

The only difference is that the live system runs mysql 5.6 and the dev system mysql 5.5, php version is also different (live 5.5, dev 5.6)
Additional the live system runs in Production Context, the dev system in Development context.

Everything else is identical.

The page that is not indexed contains a cacheable plugin that shows a record of an extension i developed. The indexing is simple done via frontend rendering and the html comments. There is no crawler. I tried different approaches (cleared all index and opened the record in anonymous tab in FE, cleared all index and opened the record from preview link (with logged in backend user) and so on). Its allways the same - the dev system is capeable of indexing the record, the live system not.

The record contains special characters in the title but the table is in both systems utf8/utf8_general_ci and runs MyISAM Engine. The database is also set up with utf8 and collation utf8_general_ci. so also no difference there.

I have no idea why this happens but its annoying for my customer.

Can this be related to the mysql version? Did any of you experience the same problems?

Typo3 4 Version is 7.4-dev (89139e81a49259ec03c5ea6b0c35734f9528f5f3)