Hi there! Can someone give the answer for this, why on events or most races when I finished them Zwift shots down without letting me save the activity? 
Doesn’t give any data and for example if it’s 22 miles it only counts 20 and nothing gets unlocked.
Sounds like you may be experiencing an internet drop at the time you are quitting.
Doesn’t even give time to press save, Zwift just disappear.
Zwift is crashing for some reason. You need to poat up more information about your setup.
Running Zwift in Spanish?
If yes, try to change to English and test - the bug seems to be here for a longer time already.
If not, you should provide more information:
https://forums.zwift.com/t/guide-to-getting-useful-support/425781