Sccm Deployment Waiting For Another Program

Hi all,
Having issues with SCCM being stuck installing applications at downloading 0%. When I check the deployment status it says waiting for content.
I know this can have something to do with boundaries so checked and the client I am trying to get working is in a IP address of *.*.34.*. On the SCCM server there is only one IP subnet of *.*.32.* and Default-first-site-name.
SCCM has been working so not sure why this has just cropped up except that it updated to SCCM 1902 yesterday.
Could this be the issue?
Cheers

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The details are that they are 'Waiting for another program'. I am looking for a way for jump start this system just to drop what it is doing and scan for advertisements. I've tried a few things, like initiating a hard policy reset and even performing a client repair, but that does not seem to help. Dec 05, 2016 Whenever we deploy an application, it gets stuck in Waiting to install state for a few hours. The application finally installed, but it’s not telling when it would be installed. After trying out a lot of different “fixes”, we finally fixed the problem. Psp seplugins folder download. The problem is a bug in SCCM client.