Preview is stuck in a loop and is unresponsive

I'm having the same issue since last update--Can't stop preview.
AE 17.0.6 Build 35

iMac (Retina 4K, 21.5-inch, 2017)
3.4 GHz Quad-Core Intel Core i5
32 GB 2400 MHz DDR4
Radeon Pro 560 4 GB

so what is the solution? I've been trying multiple things listed here for two days now. I just reinstalled to 17.0.6 and still having issue. I was NOT working off cloud and had not had an Adobe upgrade for the past month or so. I worked on a similar project a month ago with zero issues. I opened that project up and was having this same issue.

Ergh so infuriating! I have wasted so much time today install older versions - I don't want to speak too soon but I've just installed 17.0.4 and it's working fine. Fingers crossed it stays working fro the rest of the day!

I'm also still experiencing this, I tried going back a few versions and it still persists. One thing I have been doing that works some of the time is to right click your AE app icon in your menu bar and select close. This will sometimes break the loop with a save prompt. Doesn't work all the time but I'd say about 70% of the time it works.

When is Adobe going to fix this...............

Yes, Luke Howell. I am still experiencing the problem.

I'm still experiencing this bug in the latest update 17.0.6
I have tried installing older versions, a complete reinstall, older GPU drivers, importing a file into a new comp. Nothing is working.

Are others still having the same problem?

After Effects gets worse with every release.
My RAM Preview is not working either.

Windows 10 Pro. Xeon Workstation. Quadro. 32GB RAM. Samsung SSD, Wacom tablet, comfy chair, glass of beer, etc, etc, etc. It doesn't work.

I agree with Bjorn, this problem seems to be back. Just updated to 17.0.06.

Hello! This issue is back with the latest update of AE -- today's date is 04/29/2020

This hast to be the most annoying bug ever.

Win10
Xeon E5
64 GB RAM
Nvidia 1080ti