So i guess while you Switch the pages the "ranking" of ur builds is recalculated and sorted again and your microwave build changes places with the wd speedfarm build. Maybe a just a coding Problem?
I'll upvote your microwave build, it Looks pretty cool and i wanna try it when i Play crus again this should make ur build visible
edit: and there it is ^^ but now the helltooth build mentioned above is gone. whew
I can see your Problem and i also have an assumption why it happens sometimes.
this should make ur build visible 
The list of your builds is arranged by the upvotes. Your updated microwave build has atm +5 and Shares its "place" on the list with some other +5 builds.
On page 1 i can see your WD builds "2.4 Under <2 minutes MEGASPEED T10/GR45 farming build." and "2.4.2 Helltooth Gargs + Manajuma T13 Speedfarming"
If I Switch to page 2 you see "2.4 Under <2 minutes MEGASPEED T10/GR45 farming build." again and the next is "One BLOW Monk T6-T13/GR45-60 Speedfarming ".
So i guess while you Switch the pages the "ranking" of ur builds is recalculated and sorted again and your microwave build changes places with the wd speedfarm build. Maybe a just a coding Problem?
I'll upvote your microwave build, it Looks pretty cool and i wanna try it when i Play crus again
edit: and there it is ^^ but now the helltooth build mentioned above is gone. whew