I was just having this issue and found out how to fix it. In dplr::pad, the default support is 1M rows to avoid issues with memory usage, but you can edit this limit. When you call pad() use the argument break_above = 3. This means pad() will return up to 3M rows instead of 1M. I chose 3 because your error message returned 2985322 (approx ~3M) as the estimated number of rows. If it doesn't work, try bumping it up to 4 since 2.98M is an estimate. Hope that fixes your issue!