We have Matomo being self hosted and we’ve faced the json_decode issue on core/Common.php which was already fixed. But this led the ecommerce data to not be processed.
I’ve tried to reprocess the historical data ( https://matomo.org/faq/how-to/faq_155/ ) but it didn’t worked. Are the ecommerce data not stored in historical data? How can I debug to check if ecommerce data is at the historical source?