Stupid But...

Goto cydia and type in mobilesubsrtate in the search.

Reinstall then respring, it should work after that.

 

Did it work?

 

I usually find just doing another respring fixes this so would be interested to know if reinstalling mobilesubstrate is a long term fix.

 

No biggie, but if you're looking for mobilesubstrate, it's two words, and not one in your Cydia search.

 

I realized that after I clicked submit.

Thanks

 

I had this same problem, but only the Cydia icon would turn white. I reinstalled "mobile substrate" and the icon went back to normal.

Great fix!