I've found 2 "Bugs" in the GB. (using GB64 v7)
Don't know, if this is only in v1.3 (but i think not....)
BUG 1 :
on the table "Game length" it's allways block(s) , although disk(s) is selected.....

BUG 2 :
The sequence is false, while sorting them descending or ascending...
After 12 blocks it should be 13 blocks...not 120 etc...

Don't know, if you allready know this, but i couldn't find a post/thread here....