I have written down some errors, after moving to 3.1.12 standalone YAF application. These are not catastrophic errors, but should be ironed out in future revisions of YAF when time permits.

ADMIN section

1. Changing the EMAIL in the Admin settings of users, produces a system exception. (This happens also, if the user does it in his own settings page.)
2. When displaying the list of USERS in the Admin interface, there are always only 5 rows displayed, even if selecting 10, 25 or 50. This is more an inconvenience than a bug.

Public USERS section

1. When changing the password in the user web interface, or after clicking the password change link in the email, and all other conditions are met, the app says there was an error. It is just an annoying informative error, because in reality, the password has been changed and the user can now log on with the newly accepted password.
2. Changing the EMAIL in the user settings produces a system exception. (This happens also, if it is done in the Admin interface)
EDIT, 22.feb.2023: an exception does NOT happen in the users' settings and Admin user interface section. See clarifications in further messages.

3. Trying to Login with username "GUEST" and some wrong password, generates an exception.
4. Albums: uploading the first image into the first Album, has no cover, so it has a broken cover image.
5. Attachments: for user attachments, there are extremely small icons, which are not clickable, but they should be. But if I right-click on the small icon and open it in a new tab, the image (if it is an image) does display. (This works, but is not intuitive for users.)

Public USERS section

1. When changing the password in the user web interface, or after clicking the password change link in the email, and all other conditions are met, the app says there was an error. It is just an annoying informative error, because in reality, the password has been changed and the user can now log on with the newly accepted password.
2. Changing the EMAIL in the user settings produces a system exception. (This happens also, if it is done in the Admin interface)
3. Trying to Login with username "GUEST" and some wrong password, generates an exception.
4. Albums: uploading the first image into the first Album, has no cover, so it has a broken cover image.
5. Attachments: for user attachments, there are extremely small icons, which are not clickable, but they should be. But if I right-click on the small icon and open it in a new tab, the image (if it is an image) does display. (This works, but is not intuitive for users.)

I'm trying to reproduce the issues. Can you post the exception messages? I cannot reproduce 1 & 3

5. Which icons are you referring to? Attachments inside post are clickable

This isn't really a bug, but while you're updating things. Maybe tweaking the message history compare to something a bit more readable? Or maybe it's just me that finds it cumbersome to read. 🤷‍♂️

 image.png You have insufficient rights to see the content.

This isn't really a bug, but while you're updating things. Maybe tweaking the message history compare to something a bit more readable? Or maybe it's just me that finds it cumbersome to read. 🤷‍♂️

 image.png You have insufficient rights to see the content.

I changed it a little bit to make it semantic instead of inline

 message-history.png You have insufficient rights to see the content.
 

Public USERS section

1. When changing the password in the user web interface, or after clicking the password change link in the email, and all other conditions are met, the app says there was an error. It is just an annoying informative error, because in reality, the password has been changed and the user can now log on with the newly accepted password.
2. Changing the EMAIL in the user settings produces a system exception. (This happens also, if it is done in the Admin interface)
3. Trying to Login with username "GUEST" and some wrong password, generates an exception.
4. Albums: uploading the first image into the first Album, has no cover, so it has a broken cover image.
5. Attachments: for user attachments, there are extremely small icons, which are not clickable, but they should be. But if I right-click on the small icon and open it in a new tab, the image (if it is an image) does display. (This works, but is not intuitive for users.)

I'm trying to reproduce the issues. Can you post the exception messages? I cannot reproduce 1 & 3

5. Which icons are you referring to? Attachments inside post are clickable

(#5 is in the Settings /Attachment section of the user, not in the public forum area)

Sorry for the delayed response.
I will get on this Wednesday or Thursday European datetime, and report back here.

I updated the attachments page, both in the admin section and the account section

https://yetanotherforum.net/forum/Profile/Attachments 

You can click on the image and see a preview in a popover 

I tried working on #1, #2 and #3 more.

#1, password change:
this does NOT generate an exception, and when password complexity conditions are met, there is a small info popup, which says password change is successful. However, the fields (username, pwd and pwd_repeat) are blanked and outlined red as if there was an error. The password is effectively changed, though.

#2, email change:
I tried this extensively today: I did NOT get exceptions for email change:
- Admin own setting email change in own settings: no problems, the new email is accepted "as is".
- Normal user settings: no errors or warnings, the email is accepted "as is".
- Admin change own or others' settings in ADMINISTRATION/USER settings, accepts the change, but notifies with "You have entered an illegal email address". If I enter a new Illegal address and press SAVE two times, the first illegal adress is displayed after the second SAVE. The email, which is displayed is not the correct one in all cases. No system exception reproduced here.
- (A more serious case to be checked, which I still have to try to reproduce, is with an email, where there already is the same email among unconfirmed new users, that can be seen in the Admin index. This one is not to be taken lightly, because the forum can actually lose a new user.)

#3, Guest login attempt: This is no big deal, I think, but actually produces a system exception (username Guest, password "xyz123 or anything"). I am providing the exception info:
 Error_Guest_wrong_PWD.txt You have insufficient rights to see the content.

Thanks for your feedback

The email issues i already fixed. The password issue is fixed now.  Also the issue with the guest login exception

Well, today I found one special case, where changing the e-mail in the Admin user section for a normal user, produced an Exception. The normal user first had a validated email and was posting messages normally, changed the avatar, etc. Then, I was doing testing and changed the user's settings with some email, which I knew did not exist. (This is a test user on my server and email account on my mail server). This "invalid" email was accepted and all was OK.

Then today, I wanted to change the email of this user back to the valid address, and got this Exception. (I tried this twice, so it's a confirmed error case).

 Exception_Admin_CangesEmail_of_user_20230226.txt You have insufficient rights to see the content.

EDIT: you might have already fixed this for the next version. But I still had this error on the list to reproduce.