I was prompted multiple logins for this site, although the logins are for two different sites

Hi,

 

  1. I have two 'imageshack. zendesk.com' accounts, each of them has a different email, and PW.  
  2. I have 'pinger.zendesk.com' account associated with the same email and PW associated  with one  'imageshack. zendesk.com' account.
  3. I saved the 'imageshack. zendesk.com' associated with the different email and PW associated with the 'pinger.zendesk.com' account  in the IDSS.

  1. I didn't save   the 'imageshack. zendesk.com' associated with the same email and PW assocaited with  'pinger.zendesk.com'  account  in the IDSS Vault.
  2. I saved the 'pinger.zendesk.com' account assocaited with the same email  and PW associated with 'the 'imageshack. zendesk.com' account in in the IDSS.

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However, when visiting (in the address bar was) the 'imageshack.zendesk.com' or 'pinger.zendesk.com', then I was prompted with multiple logins(screen shot below), although the logins URLs,  titles, usernames, and PWs are all different(look at screen shots above)  since they are for completely different sites.(be careful while looking in the address bar in the screen shots below)

 

Yes, both sites are in 'zendesk.com', but the first one is 'imageshack.zendesk.com', and the other one is 'pinger.zendesk.com'
Screen shots above)'

There are two problems: 


1- choosing the login 'pinger.zendesk.com' while visiting ''imageshack. zendesk.com' logged me to the imageshack zendesk associated with the same email associated with  'pinger.zendesk.com'. However, choosing the login 'pinger.zendesk.com while visiting 'pinger.zendesk' logged me to my account at  'pinger.zendesk.com' ('When visiting (in the address bar is) the 'imageshack. zendesk.com' , and when choosing the login 'pinger.zendesk.com', then I logged in to my account at 'imageshack.zendesk.com'. However, while visiting (in the address bar is) the 'pinger.zendesk.com', and when choosing the login 'pinger.zendesk.com', then I logged in to my account at pinger.zendesk.com. However, when  visiting (in the address bar is) the 'imageshack. zendesk.com', and 'When choosing the login 'imageshack.zendesk.com', then I logged in to my other account at 'imageshack.zendesk.com'  associated with different email(my email '[Removed]) and PW assocaited with pinger.zendesk.com'. . However, when choosing 'login 'pinger.zendesk.com', there is error  'Email address / password combination is incorrect, try again or get a new password.'
Also, when visiting (in the address bar is) the  'pinger.zendesk.com', then choosing the login ''pinger.zendesk.com' associated with the same email '[Removed]', and PW associated with my other imageshack account., the I logged to my  'pinger.zendesk.com'. However, choosing the login 'imageshack.zendesk.com', an error is shown 'Email address / password combination is incorrect, try again or get a new password.'


2- Why are Multiple logins are listed when visiting the 'imageshack.zendesk.com' or 'pinger.sendesk.com', although the site are different?