Someone explain to me why on my Resto Shammy the following happens...?

Ok so I'm about to do a boss and I start spamming 4 and 5 on my keyboard.

4 is my DPS macro for my 3 elemental shammies and has nothing in it on my pally. 5 is my Pallies Tanking macro and it is unbound on all the other shammies.

If I mash them together alot and fast for whatever reason my 5th shammy (Resto) will always use his mana tide totem no matter where I place it in his Action Bars. I normally have it bound to Numpad 2 but I moved it away and it still happens.

If I alternate my pushes 4-5-4-5-4 etc I don't get this problem but if I hit them at the same time 4+5 it happens?

What gives? I am using Keyclone BTW

Keyclone has made comments about "mashers" a few times that make me think it has trouble distinguishing both edges of the keypress signal at high frequencies. I guess that could make it do weird stuff?

Well I sort of get it.

I use FTL setup and when I send a command from my current screen, say to DPS a target (So I hit key 4) I see a macro I have setup for mounts change. Its like my 4 key acts like shift as well when its pressed. Which makes sense cause in my keymaps I send Shift to all my other chars, but it still seems strange to me.

If you're using FTL keymaps it's very possible you have them set up wrong, or failed to free all the default keybinds that could be triggered by your mapping.