Data Export Download Fails After Link Generation

I am having the same issue although it fails on different sizes, but anoying part is I do not know how big the file is, and I tried even downloading extension hoping they will keep file in case of corruption but it does not work, this needs to be fixed it is bad. I am paid user and this is bad, at least I should be offered what I want to download, at this point I do not know maybe it tries to download images as well, but I am trying to make just safty backup, of chats and this does not look good at all. Is there a way to escalate this issue, can Chat GPT give us more reliable option to download history ?