As suggested by
Count Morado , a hot-fix solution was available from the Dev's Discord:
1. for version 5.0-beta
2. if you have started a new savegame from the start and are stuck on the door of the University and so cannot complete the Brandy quest
3. download the attached archive "Map012.zip" and replace the contained map12.json file over the one in the `/game/data` folder
And just a few minutes later there is a more comprehensive hotfix:
- "DemonDeals-v5_0_beta_--_Hotfix_1.zip"
Check the discord "bug-reports" channel for all the stuff that is fixed, there's no easy list I could copy.