I have the same Wordfence related issue when Woocommerce is used in parallel.
The login error text (The username or password you entered is incorrect) is placed on page top outside Woocommerce login box.
This post has status Resolved.
I can’t find however the issue resolution in this post.
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This reply was modified 1 year, 4 months ago by Ivalde.
This seems to be an unsupported plugin…
Thread Starter
Ivalde
(@ivalde)
From a WordPress test site the reason for the missing page text is found to be a plugin conflict with this WordPress Groups plugin:
https://ww.wp.xz.cn/plugins/groups
Please install that Groups plugin at your own site and you will see the problem…