Hey @andres.pinzon and welcome to Auth0!
Do you use silent authentication for these apps (which relies on the auth0 cookies sent to a user browser so that after refreshing the page the user doesn’t need to reenter credentials to receive new token/retain a valid session)?
Silent authentication returns response from the https://subdomian.xx.auth0.com/oauth/token
with auth0 cookies.
Can you compare these cookies’ values between sessions of App A and app B before any refreshing happens? Are they different?
What comes currently to my mind (but would require some further investigation) is if they are different, the former cookie value for the app A session might be considered as invalid by Auth0 after a new one (for the app B session) has been sent to the browser so the silent authentication for the app A can’t happen.
Thanks,
Marcelina