I'm trying to access my Electrum wallet (mac) but it's stuck on Sync for the past 30 minutes or so.
I've already tried the following:
1. Change the server manually
2. Remove Electrum completely and import a new install from a seed phrase
3. Steps 1 and 2 on a different computer
Any idea what else can be done?
If you done all 3 steps correctly then by what I find similar to your problem maybe some of your transactions may cause this problem.You can try to use Electrum console and type
wallet.clear_history() ,and after that restart Electrum.
If this not help then is only solution to try contact
https://bitcointalk.org/index.php?action=profile;u=3137