Why do some online pictures in WeChat Mini Programs in Android phones disappear randomly?

I have a list of friends in Mini Program. When Mini Program uses it for a few minutes, the avatar of his friend will randomly disappear one or more. It should be said that it has become transparent, because clicking on the area of the original profile image can still trigger the event of the picture. Page switching can not bring the picture back. Only Android can do this, the console has not reported an error!

Mar.17,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1e6435e-45a8a.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e6435e-45a8a.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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