Webinar chat incomplete

[Lisa25]

Hi, I hosted a webinar yesterday. 40 people. All were panelists. Saving chat was enabled. Recording turned on. Stored in zoom cloud. The recording was saved properly but only a tiny fraction of the chat log was saved. We had a ton of chats and want to recover the full chat. All chats were public. Everyone from the webinar wants the full chat. We have hosted 100’s of webinars before. First time this has happened. Possible to recover it?