Ever since The Sims 4’s latest update for PC / Mac many Custom Content users have reported seeing broken text and missing interactions on Custom Content items and custom interactions added with Mods / CC.
Thankfully SimGuruGraham has issued a statement on The Sims Forums saying that they’ll be fixing this issue in the upcoming update. Until then he also provided a temporary workaround for Custom Content creators that don’t want to wait until the next update arrives:
Those of you who play with mods or custom content may have noticed that some custom text (names, descriptions, etc) that is part of a mod/CC have either gone blank, or switched to displaying “**DEBUG**” (on game version PC 126.96.36.1990 / Mac 188.8.131.520). This was an unintentional side effect of the 4/16 update. The Sims 4 team is planning on releasing another update in the near future specifically to address this issue, which will restore the text as it was displayed previously.
The issue we’ve identified is that any user-generated content authored using strings in string tables with non-zero group ids will show up in-game as blank. Changing string tables to use 0x00000000 for group id can be used as a temporary workaround for creators who do not want to wait until the next update. The next update will not cause conflicts with this workaround. Long term, we do recommend that mod/cc creators have the top bit set to avoid conflicts with Maxis created content.