Had a DP gf run a few weeks ago with similar happening as a healer. One dps left before final boss fight and we decided to try without a fourth dps. Fights on the phases lasted longer than what I have usually seen. First phase took so long that dread masters actually came back into fight after they go to their chair to channel and managed to finish it, have never seen that happen before in a gf group, every dread master came back into fight once before we finished the phase. Eventually came last phase, where they are all in the middle, and it also took so long that we wiped from the damage (two dread masters were down at that point) and the classic "blame the healer if something goes wrong or someone dies" happened when one tank blamed me and the other healer for not healing and that was the reason why we wiped. Real reason for the wipe was more likely too low dps. New dps joins shortly after and when we then try again we finished it without a problem.

Was in tactical Cademimu with a 4 dps team, two players around level 30 and two 65's (one 65 was me). We wiped once before first boss and the other 65 started complaining that group finder is broken when there are two low level players in the group and left. Replacement was also a dps (don't remember level) and we finished the rest of the FP without any major problems. Reminded me also of a old thing that happened way back when Kuat Drive Yards and tacticals were introduced. One time encountered a player (around level 30) who completely panicked when the first enemies came into view and said that there is no way he can defeat enemies that are at max level (55 then) and dropped group.

Also haven't felt that Exarch's have been hard, did my first one on my Sage healer (had the 4 buffs, but not any of the equipment you can find since didn't have any of the specialists at level 10 at that time) with a level 26 dps companion which I switched to tank whenever saw a champion enemy ahead and back to dps afterwards. Didn't feel at any point that it would be impossible to finish a fight.

Experienced the same, joined an in-progress GF operation and immediately leader of the group wrote that I am not the one they wanted and removed me from the group and got a 15 minute lockout as a result.

I know that bonus disappears if it's parent mission is completed before it, will always complete bonus before the parent mission when it appears. So far only seen the wierd disappearing bonus that OP described on Alderaan in "The Lanar Question" heroic, you complete the first and second stage of bonus and after that it disappears from the quest log even when the heroic is not finished yet so it should not disappear. The bonus however is still active (just not visible in quest log anymore) and you can finish the now "invisible" final stage (go to a silo, destroy it and defeat boss, it has the same blue glow that every objective has what you need to interact with) and then it says you completed final stage of bonus. Pretty sure it is a bug.

Encountered the same when last did that heroic on Alderaan, was a little confused why the bonus just disappeared after reaching the silo stage, it didn't disappear last time I did that which was before 4.0. You can still finish it, if you know what to do at that stage and where it needs to be done, since the silo can still be destroyed it just doesn't tell you that at all.

Upgraded about a month ago from Win7 to Win10, haven't seen any problems, works the same as before.

Same thing happened to my Sage healer sometime ago in a HM FP. Got kicked after a few fights for aggroing enemies, tank and both dps were attacking the same enemy and every other enemy focused on me. In a different FP tank told me to stop attacking enemies, because that's why they are targeting me, even though I haven't used a single attack.

Have never really liked pvp in general (never done pvp in swtor before M1-4X's quest) and after M1-4X gave the quest, immediately really thought about abandoning it and ignoring it, but didn't do it. Just let it sit on the quest log for a few days and then decided (not an easy decision to make) to try pvp, thinking what would I lose for trying. Knew wouldn't be very good at it, but refused to be inactive and not do anything on the matches. Did 2 pvp matches at a time and eventually ended up with 12 losses and 4 wins. What really surprised me it really wasn't as bad as I thought it was.