I was attempting the Sundered Doctrine dungeon solo, and after a while, everything was breaking. I was in the third encounter. The mechanics didn't work anymore (couldn't get the buff from psions), my weapons were invisible, my glaive block didn't register, I wasn't getting the correct glaive energy on kills, my class ability (ascenscion) was not working (no animation/no damage to enemies), healing wasn't working (neither from orbs of power, heal clip, overshields, nothing), my vexcalibur exotic overshield wasn't proccing, transcendence didn't restore ability energy on activation, and so on. There was the rare times that the psions did give the buffs, but it should not be this way (already have RNG on loot, don't need it on mechanics). This was very frustrating, getting to the 3rd encounter solo and having this happen. I died and respawned, and things were slightly working again for about 20 minutes, but then repeat. Other things that occured, include the freeze fields from the psions sometimes didn't slow me, the boss "burn" effect once you activate damage phase sometimes didn't burn me, and at one point, the enemies acted like I didn't exist. Again, this is all annoying, but it's all pointless if the dungeon mechanics don't work and I cannot progress. If I swapped off my glaive and onto something else, then I feel like the success rate of the psions giving me the mechanic buff went up from around 1% to probably 15%. So probably something to involve the use of glaives. Invisibility also didn't work from stylish executioner, nor from the Heartshadow sword (I tried). Very frustrating. I found some near-dead Reddit threads with 0 upvotes that had similar issues. I added a 45 second video I clipped from Xbox (I am playing on Series X) showing some of the bugs, but it was going on for a long time, until I finally gave up trying to circumvent the bugs and stopped playing. I've run into similar things before (I've played these games a very long time), such as during week 4 pantheon at Nezarec. After who knows how many hours, things like no super on rally flag, invisible weapons, abilities not working and etc. were common. Only way to fix it was to go to orbit and come back. Obviously, when attempting a solo this is not ideal. Anyway, figured I'd make a post here, because if I had these issues way back then, and I'm still having these issues, then I imagine others are, too. In fact, I saw a couple older posts of related issues, so I'm just adding my two cents.