Is the picture generated by WeChat Mini Programs canvas occasionally mirrored?

use wx.canvasToTempFilePath and wx.canvasGetImageData methods to convert canvas to upload pictures. Occasionally, the problem of image mirroring occurs. How to solve this problem?

Oct.19,2021
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-64f5-1e5498c-452c3.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e5498c-452c3.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?