switching between EDIT and EXPORT takes very long time

build 33 (BETA) takes forever to switch between EXPORT and EDIT

steps

Switch to export when you have setup a timline with content

first I see empty screen, to presets

When I click in the left it updates with presets

now try to switch back to EDIT and then to IMPORT or EXPORT

results

This takes forever..

everthing is greyed out in the menu's