Agreed, 4 years later! Since HubSpot implemented the the new CTA platform and finally allowed the Legacy to be migrated, (a course of action I found to very implements in a very backward manner as far as order of operations), we have had nothing but problems and time spent resolving them.
We learned migrated CTAs: Replaced CTAs we had built more recently; Lost the corner settings and text colors so they all became rectangles where many had round corners; the text background colors were changed to different shades, creating many CTAs that had white text ona bright yellow or light blue background making them impossible to read.
My best resolution so far: Redesigning each CTA in the current file to the standard button, which in most cases worked. That replaced them all on the locations. That did not solve all spacing issues since some of them were created with a different embedded template size. But it came close.
We have hundreds of pages with multiple CTA buttons on them. It has so far taken me 24 working hours to resolve just half of them. This has been a huge waste of time and rescources caused by HubSpot’s migration programming. We can’t be the only small business using HubSpot that has a small marketing department.