I don't know if it is a real problem, anyway...

Server status

Application	Unsent	In progress
RxDock		4367	2886
CurieDock	11084	1932

My SiDock@home [test] preferences

Run only the selected applications	Test of RxDock on BOINC: no
					Test of CurieDock on BOINC: yes

If no work for selected applications is available, accept work from other applications? 	no

My Event Log

sab 5 dic 2020, 10:41:08 | sidocktest | Scheduler request completed: got 0 new tasks
sab 5 dic 2020, 10:41:08 | sidocktest | No tasks sent
sab 5 dic 2020, 10:41:08 | sidocktest | No tasks are available for Test of CurieDock on BOINC

If I set

If no work for selected applications is available, accept work from other applications? 	yes

then I get work from RxDock only.

same over here..

Thanks for reporting. That was strange. Fixed.