After an update in Exhibition and WB of Core to 7.x.67 and LDAP to 7.x.2.5 (plus DB update) LDAP changed in a way that required the server credentials to be entered again. On WB this worked fine. However on EX it did not. I had to disable LDAP in production. On EX production and dev I have a non-LDAP user (I added just before the LDAP update for safety). So I can log into both. If LDAP is enabled on prod we get an error message that is visible to the users. With LDAP disabled the error message goes away and the users are none the wiser.

However LDAP is still broken. In EX dev, the LDAP forms do not function. They display but seem to be interrupted by a jQuery-JavaScript error JavaScript error: DevTools failed to parse SourceMap: http://exhibition.sidora.dev.si.edu/sites/all/modules/si_exhibition/js/jquery.once.min.js.map so the LDAP forms are not operable. This prevents us from adding an LDAP server and getting LDAP operable again. I have no idea if the Javascript error is related to core, ldap or data since EX Dev is not fully configured. But the error showed on Prod which is configured correctly.