We tried upgrading Alteryx Server but we got an error message when upgrading the MongoDB to 4.2. Now we're trying to revert it back to the 2021.3 and we're getting the error below (very likely because it's pointing to the newest 4.2 instead of 4.0 Mongo). Any suggestions on how to fix it? Thanks.
Mongo error: "Index with name: fd5e7f7ad987788251ca676578977ec1 already exists with a different name: generic server error" code: <mongodb:85>