Hello, I have a flow that loops through assets on an account. When I try to do a mass update manually from an asset list view, I get the 'maximum number of duplicate updates in one batch (12 allowed)' when updating more than 12 assets on an account. 

In the flow I have a loop element, and any items that meet certain criteria are directed to the update element. The update elemnt is where I receive the error whenever I update more than 12 records on the same account. 

Is there a way to bulkify this? Would I need an apex trigger in addition to this flow? Thank you.  

I'm trying complete the Lightning Experience Rollout Specialist challenge #1, but i cant use Optimizer tool.

If i go to http://optimizer.salesforce.com/, i receive this message:
Offline for maintenance
This app is undergoing maintenance right now.
Please check back later.
On Trailhead playground, Setup>>Monitor>>Optimizer, same message:

I have been attempting to complete the Trailhead Module Work with GeoJSON and Create the Map for Wave Analytics.

It's all fine when I go back to my Salesforce DE org and I upload the GeoJSON file/map/definition and I follow all of the labelling and options that  unit sets out. It's all fine too when I go back to Wave to access the Los Angeles zip-codes dataset and select the measure and "group by" specifications set out in the unit. There are no problems when I set it to being a map chart.

HOWEVER, the problems begin when I select the "Map Type". The map I uploaded in the DE Org, "Custom: L. A. Zipcodes appears which is good, but when I select this map and the system begins to load it, the system seems to crash and Wave freezes up and I never end up seeing the map and the chart is never applied to the map.

As the chart applied to the map of Southern California never ends up loading I cannot complete this Trailhead unit, nor can I complete the next unit which also works with the map.

Any guidance people can give me here would be much appreciated.

Nick.