• Description: The text of the "Culture chosen" notification is often unhelpful with incomplete and redundant information, like in "Mauryans reached the Classical Era with the Mauryans".
• Steps to Reproduce: 1. Play until you have diplomatic relations with a few other realms // 2. Wait for a realm you have already met to progress to the next era.
• Reproducibility: feels like 5/5 (always)
• Expected Behavior: The Text should probably read "Okwaho reached the Classical Era with the Mauryans", i.e. the sentence should start with the name of a player character rather than with the name of a culture.
• Notes: I suspect a straightforward mixup of variable names in a printf() statement or something similar, like printf("%s reached the %s era with the %s", culture, era, culture) instead of printf("%s reached the %s era with the %s", player, era, culture), so this might be low hanging fruit for a bugsquashing session, but obviously i cannot be sure without seing the source code. While here, the message could be improved to read "Okwaho of the Olmecs reached the Classical Era with the Mauryans", i.e. mentioning both the old and the new cultures because the player is likely to remember the old culture of the neighbor, perhaps even more likely than to remeber the player character name.
• Attachments: See below for an example screenshot.

RESOLVED in the June Beta Release (June 16, 2021), thanks!  :-)

Judging from Steinwallen's "Let's Play" on Youtube, this now reads correctly, for example:

"The Harappans reached the Classical Era with the Celts."