Hi!
I hope that i can find an answer here, i couldn’t find the option to submit a support ticket. my PrivateMembersData read permissions changed by itself to " Admin " instead of " Site member author ".
wix says:
The PrivateMembersData collection has the following permissions :
Read: Site member author
[…]
You cannot change the PrivateMembersData collection permissions.
Now my site is not functioning right and i don’t know what to do :\
Any suggestions?
This forum is dedicated to Corvid. For questions that are not related to code you can contact the Wix support team . You’ll get better help for your problem there.
well, my code is not working due to this issue 
i can’t query this collection for simple tasks such as displaying the current member name, and it worked just fine for months. the issue occured yesterday.
Let me show you one piece of code with this issue, my site is full with bugs now:
wixData.query("Members/PrivateMembersData")
.eq("_id", userId)
.find()
.then((results) => {
let firstName = results.items[0].firstName;
let lastName = results.items[0].lastName;
let fullName = firstName + " " + lastName;
$w("#barMainButton").label = fullName;
})
i found a workaround but i don’t like it:
let dataOptions = {
"suppressAuth": true,
"suppressHooks": false
};
wixData.get("Members/PrivateMembersData" , userId , dataOptions)
.then((results) => {
let firstName = results.firstName;
let lastName = results.lastName;
let fullName = firstName + " " + lastName;
$w("#barMainButton").label = fullName;
})
It’s not really a workaround. The suppressAuth option is intended to let backend code override database collection permissions.
Your original question however is still unanswered. If you feel that something somehow changed without your intervention, then it might be a system or network issue. The best address for these types of issues is the Wix support team .
Thank you, i just called them 
Following on from Yisrael’s reply, you are not mentioning where you are trying to show your current members name.
The Members/PrivatemmebersData collection is readable only by that unique site member, so if the site member is already logged in to your website and you send them to a page where you simply had a text box element to show the currently logged in site members name for example, then it should show perfectly okay in the text box element.
However, if you are trying to show currently logged in members data to any public user or a site member who is not logged in, then obviously this will not work as they do not have the correct permissions to view that collection and that unique site members data.
The way to get around this is to use Wix Data Options in your Backend as you have mentioned to suppress the checks and hooks on the Members/PrivateMembersData collection.
Seems to be bugged, will be looked into asap.
https://www.wix.com/corvid/forum/community-discussion/found-a-bug-need-urgent-pro-help
Thanks for posting so that it could be looked into. 
Yes i understand this, and use it the right way (showing a member his own details). This code worked for months perfectly and the issue occurred since yesterday.
Thanks for your reply 
@shimistudio the bug has been reported itll be fixed soon