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Go to the desktop website

https://seekingalpha.com/account/edit_stocks

Uncheck the box marked "All stocks in the list" in All Portfolios.

You should no longer receive email alerts but push notifications should still work.

In the next version of the app, we are combining the configuration of email and push in one dialog. 

Are you accessing Seeking Alpha on a work computer ? if so, please ask your IT department to look at it.

If you installed livesafe youself at home, try adding seekingalpha.com to the whitelist e.g. bypassing livesafe and if that solves the problem, please contact livesafe support.

Do you have anything about your browser setup which is not typical ?  extra security software ? blocking cookies, blocking javascripts ?

It happens when the article has comments.  We will release a new app asap.

The most likely cause would be that you are using some proxy or vpn software.   Edge works fine for me see below, so it isn't an obvious website problem.   Do you notice any specific  ads on the page when the problem occurs ?

Anyone else having a similar problem ?

I see 8 watchlists under your account.  What happened exactly ?