I use my web bookmarks a lot, have been fine since I first updated 8/22, have not noticed any problems like that. However I have ALWAYS noticed weird software hangups in general when running the device on the first bootup after an update (all three v1.1 - v1.3). A restart cleared those right up for me.
The next question would be, if that does not work, do you get the same browser behavior if you re-add the bookmark?
I had to perform the hard reboot (power button + n button) 3 times to get it finally working - very weird... The first hard reboot did nothing...
Looks like it's working now.