Why doesn't WeChat Mini Programs have a background picture on Android 6.0now?

for example, at present, I have only tested it on Android 5.5and Android 6.0.The version of Wechat is 6.6.What is the picture of the link now?

Php Mini-Program wepy html5 javascript
Mar.13,2021

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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-64f5-1b33146-2b5e1.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b33146-2b5e1.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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