Hi,
It seems that your player is in download window - which is reasonable since it’s open all the time.
Have a look here: There is error on xml document...Clients doesnt update
Pretty much the same questions:
CMS/player versions?
library path? (is it different than CMS library path?- it has to be)
Modules -> verify all
Report fault -> any (X) there?
Enable debugging/auditing, recreate the issue and save logs (redact any sensitive information from it before posting it here)
Check if anti virus etc software is perhaps blocking the Xibo files? (there should be warnings in the client’s library if that’s the case)