@LeonhardP Basically as it says in the title. I'm working on the Create With Code project, prototype 5 (see here). At step 4, game objects have a script that send them into the air and fall. With the same script, they fall smoothly in 2020.2.0a15, they don't in 2020.2.0a16, they seem to stop every second. This is the best description of the problem I can give. Please, nobody answers that "you should use the recommended version for that tutorial", thank you.