Scanning sitting at o% on iCloud on Mac

Problem

scanning sitting at 0% for all folders on iCloud account except for inbox, sent and drafts’

Context

Only on this iCloud account. another one works perfectly. have set up both as iCloud and map accounts. issue remains

Email Provider

iCloud

Setup

  • OS and Version: macOS 15.3.2
    • Installation Method:installer from Mailspring app
  • Mailspring Version: 1.15.1

from research this seems to be a recurrent bug which is never fixed. does anyone have a fix?