Hello @GYAO ,
Can you describe what exactly is occurring when you insert your greeting tag or contact details? Can you elaborate at all on how it's working sporadically? Where in the process of adding a greeting tag, adding subject line personalization, or adding contact details to your emails are you running into issues? Are the issues occurring when adding these elements fresh, or only for copied versions of the email? Are you seeing this issues in live sendouts of the emails (i.e. out to actual contacts), or are you only seeing the issues when performing test sends?
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