Is this a know bug or an error in my end? And should I updated to 0.51a? So far no other issues.
1) Works as designed: You can change this in SD:/C64/sidekick64.cfg. There is a new setting called
USE_FAVORITES_FOR_MAINSCREEN since 0.49. If this parameter is not set to zero, the files in folder SD:/FAVORITES are being displayed. If that folder is empty, nothing is displayed.
2) Yes, you should update to 0.51a which - if you were on 0.51 before - simply means to take the file SD:/C64/launch.cbm80 from the latest Zip and copy it to your SD card into folder C64 and overwrite the old one.