Every time I open some page of Russian wikipedia (ru.wikipedia.org/...) there is like 50% probability of Opera to freeze. The only way is to close it via android app manager or with the system dialog, that will show up ("close, wait or send report"). When you reopen app you still cannot go to this page since it will freeze up again, so you have to close it (and you cannot even save the link). Very rarely if you wait long enough (~1 minute) it will load the page.
I can also remember that I haven't experienced this in first versions of Touch, it started after some summer update I think.
Should I submit a bug report? This problem is stably occurring so I can send all required information.

Rename the "Opera" folder in Opera 12, to something else, then reinstall Opera 20. I think it's a reserved folder name. The same goes for a folder named "Bookmarks."

No, it doesn't help. Seems like I'm going back to version 12.

pesala, thank you, I'll try.

I have a problem with importing bookmarks from Opera 12: import manager only sees bookmarks from the root folder and bin, but not from the other folders in it. I have the most of bookmarks in "Opera" folder and lower directories. How can I solve this problem?