nRF ToolBox DFU failed when I selected distribution package!

Dear:

  I had using nRF Toolbax to upload application and bootloader
  and it can get my package file from google-driver or mobile phone

 after 2 days... I can not upload @@


only can using nRF connect to upload my package file

Mobile: iPhone XS Max & iPhone 13 Pro Max
iOS:15.6.1

What can I do? 

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