It’s the redirect in htaccess that will route the “pretty” url into the real querystring based url that is the issue.
So, it would seem you need to “remove” the /{nicename} portion from the “pretty” URL of the form https://example.com/members-list-profile/{nicename}/?uid=XX.
Try something like the following at the top of your .htaccess file (before the WordPress front-controller) using mod_rewrite:
RewriteRule ^(members-list-profile/)[^/]+/$ $1 [L]
However, unless this maps to a physical file (in which case you should rewrite directly to that file, rather than let mod_dir issue a subrequest) then this might not work with WordPress, since WP still routes the URL based on physical/visible URL – it doesn’t necessarily see the rewritten URL. You could issue an external redirect to get around this, but that really defeats the point of having {nicename} in the URL to begin with.
Something like this should probably be done entirely within WordPress, not .htaccess.