I been having this problem since 2023. I have the Steam edition of the game. Every time I upgrade a car and buy the upgrades, the games gives me the “The file failed to save. Please try your save again. (25)” error. I don’t have any tunes and photos saved on my profile. I had 100 liveries and I deleted them all, but after I save a certain number of liveries, the game starts giving me the “The file failed to save. Please try your save again. (25)” once again. Is there any way to actually solve this problem by deleting some local files on my computer or do I have to just wait until FH6 and pray that this problem doesn’t persist in that game too? The same problem has been happening in FH4 too but it’s not that important now.
Before deleting any further we suggest reaching out to Forza Support to go over the issue in case they have specific instructions or cautions. Use the Submit a Ticket link in this topic:
https://support.forzamotorsport.net/hc/en-us/articles/16786163547283-FH5-Getting-a-Too-Many-Saves-error-message
https://support.forzamotorsport.net/hc/en-us/articles/360039416234-Forza-Horizon-4-Save-Data-Issues