Yes KG4KDN I can provide an update. The transmission completely locked in 1st gear while trying to get it to the shop. Had to trailer it in. The transmission was torn apart and there were metal shavings everywhere. The dogs had started to round in 5th gear and slip and and slipping and grinding had thrown off metal and eventually a small piece caught and bent the shifting fork locking it in first gear. Had to completely replace the transmission and clutch. I was told that in some cases there is a small component on the shifter they can adjust on the left side of the crank case once they get it open, but after checking that first, they had to pull the entire transmission.
I would suggest not riding it till you can get it opened up. or at least change the oil and check the magnetic plug for metal. If you have any metal shavings in the oil they can get into the engine and cause damage to the master crank, and even the cylinder heads and seals since the engine clutch and transmission share one oil system. If the master crank is damaged you'll have to replace the entire engine as well.
The cost for the new transmission, clutch basket, lamellar/and clutch plates and new bearings and seals was over $12,000 from BMW new. I found a wrecked bike with a nearly new transmission and clutch online and bought both for about $1,400 with the surrounding parts, and brand new aftermarket clutch plates from Barnes $300 (BMW makes you buy the whole lamellar package for 800.00 when all you really need to replace are the plates for $300.00) The race team replaces their plates with Barnes. The whole job was done for about $3500 with labor. I found my parts at rubbersideup.com who just happened to have a very low mileage 08 that was just laid down and they were in the process of parting it out. By the way the replacement clutch plates also got rid of the annoying clutch squeal I have had since the bike left the shop. BMW has repeatedly told me I'd have to buy the whole clutch assembly and Lamellar from the K1300 to get rid of the clutch squeal. Turns out I just needed new clutch plates. The BMW ones are poorly designed and have much smaller grips than the Barnes plates.
Hope yours isn't as bad, but I would expect the worst. Your one of several I have talked to with the same experience. I'll most likely sell mine in the spring now that its running. Not going to take the risk of another total transmission failure. Its the best bike I have ever owned when its running, but I have owned a lot of bikes I have put over 100K miles on and never had an engine or transmission failure on any of them. Its happened to too many people and BMW simply won't stand behind anything.
They guy at the shop admitted that they under engineered the final drive and the transmission to handle the power of the K1200GT engine. You can have a shop back east machine the dogs to an angle so they won't slip but most likely the final drive will blow up because it can't handle the torque. They made some changes to beef up the K1300 but not enough and were having some of the same problems. Rather than completely re-engineer the line BMW had enough problems they just scrapped the whole bike and went to the K1600GT/LT. Originally they had planed to launch the K1600LT and keep the K1300GT. I think the K1600GT is nice but it just doesn't ride like the K1200 and K1300GT, too bulky and not sporty enough. The K1600GT is just the LT with the top case off and slightly different footpegs. I'm trying to figure out what sport tourer I'm going to buy next. I love my BMW but really tired of them not standing behind their bikes. If I'm paying a premium for their ultimate engineering then they should stand behind it.