Robot stopping infront of docking station while docking. No error msg

Robot is in process of cleaning other rooms and visits docking station for cleaning. During this process, it stopped infront of station and probably couldn't complete docking. There is no error message anywhere. This has happened 2-3 times recently. What can be wrong? (If I press Power button, it resumes the operations, so there is no issue really)

Daily it's cleanup finishes after 10:30am (see yesterday's log).

I resumed operation and instead of continuing to previous process, it started cleaning first room again (where station is)

See image where is started cleaning first room instead of continuing previous job