Hi! Sending this here as well from our email thread:
Upon checking, it looks like Insync came across multiple rate limit errors based on the log files.
In other words: there were too many activities going on within that period of time that it’s reached it max capacity for said period. It normally sorts itself out but it can take some time depending on how big the transfer (aka sync job) is.
Any time you’re syncing a large data set, it is likely that Insync is busy scanning the local folder initially and is not getting around data transfer just yet. I would suggest not to pause-resume or restart the app frequently as that puts Insync back to a scanning state (and therefore, delayed data transfers).
Another thing I would suggest is to upload/download in smaller chunks, if possible. If it’s an upload, move some folders out of the sync location to reduce traffic and put them back in batches.