Realmzmaster wrote...
The DLC gear that does not transfer over well is from Warden's Keep. DLC from Stone Prisoner and RTO import properly. The Silverite mine bug occurs if you are using items from Warden's Keep and/or if you character is an arcane warrior. The fourth experimental subject that has your gear is bugged. If you have no Warden's Keep DLC and/or not an Arcane warrior it does not appear to happen (but I could be wrong).
You are wrong, I have neither Warden's Keep (the only DLC I have are free DLC like TSP and promotional DLC) nor any mod and I had this bug in my first playground (with a warrior). Fortunately I had a save just before entering the Silverite mines so I had only the mines to replay.
The only DLC item I still had at this time was the Harvest Festival Ring but removing only the ring didn't solve the bug. If I remember correctly the only other items I still had form the OC was the Keening Blade but I have not tried to remove only the Harvest Festival Ring and the Keening Blade.
Some people think that the reason why this bug happens is because the experimental subject cannot wear all of our items, as the Keening Blade is limited to Warrior it could be an explanation in my case.