RomanV - I have handled your issues with you via DM in Slack from the moment you had them, but I'll explain your issues here so others are aware. The reason your transactions did not remain canceled was: you re-opened the wallet which refreshed the transactions from the pool. Your transactions did actually disappear from the pool, but because you didn't close the wallet with the transactions as CANCELED, when you reopened the wallet it just pushed them to the network again. You were also the first person to have this issue, which prompted the release of a new wallet. Nobody had tried to send large transactions like that before. As soon as we were aware of the issue, we fixed it - unfortunately your transactions had to (and did) expire from the network transaction pool first, which took a week. But at this point they are again absent from the pool so you should be good, as long as you canceled the TXs!
I was not registered to slack yet. Maybe it was someone else.
But yeah, I wrote here a long time about this problem. See, but is 50-100k such a large amount for your coins? Many people have over a million coins accumulated.)
I'm more worried about the fact that last time after pressing the button "remove the pending tx" coins did not go, at all, in any quantity. I will try again tomorrow.
No news about the new exchange? Cryptopia not planned? The best variant in my opinion.