Strange Error After Upgrade - Login Issues 4.3.6

After upgrade i noticed a strange issue - login - go to abandoned cart - the list does not update

I have to hold down ctrl-shift-enter and hit reload to see it updated.

Today the second strange issue happened - customer added a product to the shopping cart, but it wont let her checkout (she has an account) - kept reloading login page.

I have suggested her to try checking out as a guest and that worked, it actually got her logged in to her original account. So she placed the order and it got added to her account and she paid. However she also has an "abandoned cart" entry with the same product she just purchased.

Please advise

PS. PayPal still does not change the order status (old issue, was hoping that upgrades will fix that but they did not)

After upgrade i noticed a strange issue - login - go to abandoned cart - the list does not update

I have to hold down ctrl-shift-enter and hit reload to see it updated.

Today the second strange issue happened - customer added a product to the shopping cart, but it wont let her checkout (she has an account) - kept reloading login page.

I have suggested her to try checking out as a guest and that worked, it actually got her logged in to her original account. So she placed the order and it got added to her account and she paid. However she also has an "abandoned cart" entry with the same product she just purchased.

Please advise

PS. PayPal still does not change the order status (old issue, was hoping that upgrades will fix that but they did not)

Please make sure you have this fix applied:

Open this file: app/Tygh/Providers/SessionProvider.php
Find this line:
$session->cache_limiter = defined('HTTPS') ? 'private' : 'nocache';
Replace it with this line:
$session->cache_limiter = 'nocache';

thank you. did the change