Hi Everyone 
So installed my upgrade ok,all good.But noticed that some of my plugins used in Cubase Pro 9.5,beforehand.
are now in the Cubase 10 blacklist,and cannot be re activated 
How do I re activate these,for the record they are all 64bit VST 2
cheers,appreciate any help
Same here, some of my regular plugins (ie. Izotope stuff) got blacklisted. And trying to re-activate crashes Cubase on the spot.
My Cubase has not crashed (thankfully) but got Izotope Neutron 64 bit (dll ) in the blacklist,yet it wasn’t in Cubase Pro 9.5,really odd
no expert in this stuff,since I started using Cubase in June
In plug-ins manager, after selecting the plugin, in the lower field you can re-enable it.
Thanks I tried that,but not able to re-enable the plugin.Really frustrating.
Interested to hear what the problem plugs are. In Cubase 9 on a mac, I have lots of older iZotope plugins (eg RX4 / RX5 / Ozone 7) blacklisted, sometimes VST2 and sometimes VST3, but the current gen are all ok I think. Any issues with the likes of Neutron 1/2 or RX6?
Can you send a screenshot of your plugins manager?
Hi Pliktro 
I will post a screenshot of my plugin manager,tomorrow,sometime.Just off to bed as I got work tomorrow
Hi ghys…any news abouts this problem…???same problem here with all of my native instrument plugins-sounds-fx…EVERYTHING…even Kontakt!!!..i re-enable all the blacklisted plugins manually…one by one…it worked… but when i turned off the computer and turned it on again the next day i had the same problem…everyhting were blacklisted again…i hope there is a problem that the company will solve…because right now i have an empty cubase 10!!!
I am back to cubase 9.5 until i find out how to fix it…
In my case it shows me the message, that 32-Bit are no longer supported for the Plug-Ins which are on my blacklist. Pretty self-explanatory, right?
Cubase 10 is also blacklisting Rewire 64 bit for Finale 25 on my machine. Cubase does not allow it to be re-enabled either.
I had the same issue and used a program called jbridge which allows 32bit plugins to run in new cubase (64 bit).
Think it fixed issues i had with blacklisted 64bit progs also