When I analysed the errors for past weeks for cxsave API from eventlogging, I got some 12 occurances of this error:
{"servedby":"mw1116","error":{"code":"internal_api_error_DBQueryError","info":"[4326b26f] Database query error"},"errorCode":"internal_api_error_DBQueryError"}
The sourceLanguage sourceTitle targetLanguage information for these translations are given below
en Michael Maloney he fr Ousmane Dembélé es en List of prizes known as the Nobel of a field ar en APEX Airlines my en Hong Kong International Airport my en Attalid dynasty sq en List of A Song of Ice and Fire characters pt en Zach Sobiech it en Delrina es ru Кофе ba en Adewale Akinnuoye-Agbaje ar en Euler's laws of motion ca
Minimum timestamp is 20160303230233 - so I infer that they are side effect March 3rd deployment where we deployed the storage migration of CX.