Can't install iSphere Compare Filters on RDi 9.8

Currently, we are using iSphere 2.8.0, the software for which is already on our network drive. We are firewalled from downloading software from sourceforge without an act of Congress, but I am trying to get approval to download the latest version of iSphere.

We recently got our activation kit for RDi v9.8 and, after installing it, I went to install iSphere 2.8.0. I'm getting the "Install Remediation Page" showing iSphere Compare Filters will not be installed, Details:
-> Cannot complete the install because one or more required items could not be found.
-> Software being installed: iSphere Compare Filters for RDi 9.5+ (recommended) 2.8.0.r (biz.isphere.comparefilters.feature.group 2.8.0.r)
-> Missing requirement: iSphere Compare Filters for RDi 9.5+ (recommended) 2.8.0.r (biz.isphere.comparefilters.feature.group 2.8.0.r) requires 'org.eclipse.equinox.p2.iu; org.eclipse.platform.feature.group 4.4.2.v20150204-1700' but it could not be found

I found https://archive.midrange.com/wdsci-l/202305/msg00082.html which referenced this same issue earlier in the thread. This message mentioned "editing the XML in content.jar and in biz.isphere.comparefilters_5.2.8.r.jar", which I am not keen on doing.

Does iSphere 5.2.9 address this issue? If not, does anyone have Compare Filters working on RDi 9.8?

- Dan
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