Welcome to the forum.
Do you mean the RH application is on a server? If you do,
then I am surprised it has ever worked, ignoring the fact that
using it that way is a breach of the licence.
If you mean the project is on a server, then unless you are
using source control, that too will lead to all sorts of problems.
Search on these forums using "Network". If it doesn't bring Adobe's
site down, you will find many posts indicating this is not good
practice.
It can work but one day something changes on the network and
it goes bang.
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