This is just my guess, but at the moment it looks like topaz/tapas will no longer be supported by Xiaomi.EU. This is not the first nor the last time that they stop making ROMs for a specific device due to problems.
At first they asked for logs, but I did not receive an answer about what logs they need. Yesterday I found a Bangladeshi chat on Telegram, where there was Kacper Skrzypek (EU Moderator and Tester) and people trying to provide logs, but as I understand it, either people could not get the logs necessary for EU, or EU guys simply did not want to fix it/could not do it because lack of testers, I’m not sure, but Kacper confirmed that there is no progress on RN12, and apparently the developers have no interest in this either