It seems with 1.20 the A3 engine no longer can read rapified mission.sqm data.
Confirmed by multiple users in the BI forum for AiA and IF:

Warning Message: Preprocessor failed on file ca\missions_ACR\missions\Showcase_ACR.Bootcamp_ACR\mission.sqm - error 7.
Error context @"
versionMissionZIntro« OutroWin]!OutroLoose"@"addOnsca_modules_functions...
randomSeedŒ@Intel|Groups1«
ErrorMessage: File ca\missions_ACR\missions\SPA02.Mountains_ACR\mission.sqm, line 0: '.raP': '' encountered instead of '=' {F24052} {F24053}