The configuration of the AceFormatter field formatter is put in the drupalSettings globally: drupalSettings.ace_formatter. This causes multiple fields using the same formatter, but with different settings not to work properly.
For instance I have two fields on a node. One setup for PHP and the other for CSS. Both fields are in the output with PHP highlighting, since the first has already added the setting "syntax: php" to the drupalSettings.
You might need to add a field-identifier to the settings object to be able to split the configuration per field and get the proper configuration for each field in the JavaScript that inits the editor.
Needs work
2.0
Code
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
Needs an updated issue fork and MR for the 2.0.x branch