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dredknight, thank you for your response.
The text appeared, but the voice acting has completely disappeared 🙁.
In the comments to the Russian localization, people were already writing about this problem back in March 2019.
https://www.moddb.com/mods/might-magic-heroes-55/addons/mmh55-russian-dialogues-subtitles-all
As a workaround, in the latest comment, they suggest:
Copy the contents from the "Sounds" folder in the MMH55-Cam-Dialogs-RU.h5u archive and replace them in the MMH55-Cam-Maps.h5u archive (bin\sounds folder).
I checked, and the method works.
dredknight, do you have the ability to contact the developer of the MMH55-Dialogs-Subs-RU.zip localization and ask them, if possible, to make corrections?
They probably just didn't pay attention to the comments.
UPD: In the "Hammers of Fate" add-on, in mission 3.1, I approached the artifact shop, but it doesn't open 🙁. There is an error in the console: "Invalid artefact ID 120". In mission 2.5, the artifact shop also doesn't work.
UPD2: If you run the game with MMH55_64.exe instead of H5_Game.exe, the artifact shop works... But the game has a different balance 🙁.