Greetings. Around 2 weeks ago I upgraded from Unity 2019.x to 2020.3.4f and the freezes (hold on messages started right after the first standalone build) Never had such troubles in 2019 ver before the update and no changes were done on the assets after I switched to the 2020 LTS (using the latest URP), can confirm that bugs appeared just from the update. I cannot give a repro project as well, but from what I see in the comments this is now a regular event on many projects so it should not be so hard to reproduce. Getting these freezes constantly is really a pain and show stopper. I hope it will be taken with high priority and a solution will be found soon .