UPDATE 2 (March 28th):
We have pushed a small update that fixes not being able to use Ziplines while carrying gems.
Hi Miners,
We have just pushed a hotfix for Update 11 addressing the issue of not being able to ride a zipline while carrying a gem or an egg. This is now fixed!
UPDATE:
This hotfix turned out pretty bad! It included a dll that didnt work with some setups (possibly Windows 7). We have now rolled back again (so no fix for the egg/gem on ziplines), but game should be playable for all.
After the weekend, we will investigate and find a proper fix.
Sorry for the inconvenience!