Acces denied when redirecting to room from moodle

[Mikhail Zhmurin]

Hello, I’m having a weird issue. When I’m trying to acces the room in OM from moodle I’m getting invalid hash error. What’s weird it’s that it works just fine in firefox but I’m getting “acces denied. You have no rights to enter this room ” in chrome. I’ve read here that it might happen if you have OM opened in 2 tabs, I’ve checked it in incognito with 1 tab only, closed everything else, issue stays. I have multiple moodle instances using 1 om. “Modulekeys” are different for each moodle instance. We’ve noticed that we have multiple users from different moodle instances under the same login. We deleted those users but the issue stays. Another weird thing is, same user can acces the room in chrome from 1 pc but cannot do it from another pc. You may say that the issue is with the particular pc but one of the moodle instances has like 150 users and about 20% of users reporting this problem in chrome and not a single problem with firefox.  We installed 2 identical chrome versions on 2 different pcs one logs in with no problem and the other one getting error.   Here’s some logs ERROR 03-31 10:55:47.566 o.a.w.DefaultExceptionMapper:170 [io-5443-exec-22] - Unexpected error occurred java.lang.NullPointerException: null   I’m really lost at this point, please help. Отправлено из приложения "Почта" для Windows 10