Sorry for long-time block chain fixing..
Finally, we think we solved all problems. (I hope so... until now, there are no problems, chain is working well..)
We released new wallet, and tested for 8 hours, and there are no problems again.
We think TUNE is now on stable chain.
Newest wallet link is below: ( please delete old block chain data.)
https://github.com/tune-crypto/tune/releases/tag/v0.12.1.8
Thank you. and sorry for your additional effort to handle this.
Inform me if there are any problem. Still haven't gotten all the TUNE I mined off tunecrypto official pool.
See screenshot in my previous post.
( I've updated my wallet properly, etc )