Problems with short codes

Actually, upgrading to any version of 3.3.x is going to break that because the tag was fully removed in 3.3.0.

The [wp-members] tag was deprecated in 3.0, with final replacement being completed by 3.1. This was outlined in the change log and the release announcements, with a list of replacement shortcodes here: https://rocketgeek.com/shortcodes/list-of-replacement-shortcodes/

I understand that you’ve got a lot of posts where you’ve implemented these. Let me begin by saying that the plugin is designed to accomplish this kind of result without using shortcodes. So in this instance, it seems you’re using these when they are not actually necessary. That being said, I understand that users do use features of the plugin in ways that are different from the intended use.

The following gist is a code snippet that you could use to re-apply the [wp-members] shortcode tag for the logged in/out status. It just shifts the parsing over to the current shortcode.

https://gist.github.com/rocketgeek/6f7f28bed8688a5cb81b07e8a67c9188