ADLplug VST2 not recognised in latest Reaper

[9Skrip]

ADLplug VST2 not recognised in latest Reaper only VST3 works
OPNplug VST2 and VST3 both work as intended

[voxoid0]

I am seeing this problem also, except that for me Reaper doesn't load any of the ADLplug nor OPNplug plugins, even after clearing the VST cache and re-scanning. Reaper successfully finds it internally though, as can be verified by the fact that it is listed in the reaper-vstplugins64.ini [vstcache] section. However I notice that it only has the timestamp, and no plug-in ID nor name/type. The format of the [vstcache] iiuc is:

<DLL name>=<file timestamp for checking for newer>,<plugin unique ID>,<user-friendly plug-in name>!!!<plugin type e.g. VSTi>

Other plug-ins have all four values after the =, but OPNplug.dll and ADLplug.dll only have the file timestamp -- no plugin ID, name or type. Maybe it can't extract the basic plugin info from the DLL for some reason?