Hi @Estefani32739828p8n4,
Thanks for reaching out. Since Photoshop and After Effects are working fine, this does seem specific to Illustrator. Could you confirm the Illustrator version and your OS details, so I can check further? It would also help to know if this happens with every file, including newly created ones saved locally, or only with certain documents. If possible, please share a short screen recording showing the save issue.
Looking forward to your update.
Abhishek