Not until the forth attempt when it does an actual backup and find the backup drive full.BTW... Does the log files show any errors at all? (your screenshots are showing the log tab, not the log files).
The log files before that looks like:
022-01-01 15:01:14 Welcome to Cobian Reflector!
2022-01-01 15:01:14 Loading the task list "C:\Program Files\Cobian Reflector\Lists\MainList.lst".
Statistics: Posted by Todd — 02 Jan 2022, 00:06