Level progression is not the same for server & client

[W1GZY]

Describe the bug
You are leveling up visually faster in the client compared to what server registers. After re-opening the client you are reverted back to what I assume is progression the server has saved.

To Reproduce
Do anything that can give you XP. Easiest would be to have a fresh account and just store all resources. You will be level 2 instantly while if you re open the game you will go back to level 1

Expected behavior
The visuals of the XP progression should not require a restart. It should show correct XP gains.

Screenshots
How the progress bar is before doing any activity

How the progress bar looks after collecting resources

How it looks after a restart of client

Desktop (please complete the following information):
Windows
Using Flash Player 32.0

Additional context
You gain different XP compared to what ingame activity you do:
Collecting resources gives too much visual XP while restarting barely moves it.
You gain more XP visually and after restart if you i.e upgrade your walls, but they don't match each other (Restarting still gives less)
Same with Town Hall, you can progress from Middle XP bar of level 23 to straight to 26 1/4 while after restart you actually are just level 24.