As you run fdk pack this time, can you do it this way NODE_DEBUG=fdk fdk run as described here,
Share the areas in the logs those direct towards Package Size Exceeds error. Or you can copy-paste the suspected couple of lines or all lines on this thread. This will help us understand if it’s really problem with CLI or any 3rd party dependency. Depending on what we learn, I will initiate a private message with you to see how I can reproduce this issue.