when you are not able to see your rank that isn't a bitcomet fault ! The Rank system is refreshing itself to update score , REMEMBER IT ONCE FOREVER
about tasks, Before installing the newest version of bitcomet software do the folowing:
1. Copy and paste somewhere downloads.xml file
2. Install the latest version of bitcomet software
3. Shut down bitcomet
4. paste downloads.xml to the folder
5. restart computer
6. turn on bitcomet
All your tasks should be there , if it's not there you did something wrong.