Just updated to the new mountain map pack and it worked well on the first run. After I got out and tried relogin in, it just blacked out after the logged in splash page.
The screen blacked out and will reappear occasionally on the set up page, frozen. Then the cycle repeats non-stop until I hit click the mouse. The program will just crash.
Been hours since I did it and now feeling helpless.
Acer Switch 11 - Core i3, 4gb RAM, Intel HD 4200, More than enough HDD space.
Can you please check that your drivers are all up to date? In spite of it working properly the first time, this sounds like an issue with an old video driver.
Here was what I did and solved the issue. Hope it can help fellow ZWIFTers with similar issues.
What I did was:
Reinstalled ZWIFT and re-applied updates accordingly.
Downloaded the HD Graphics driver from Intel as .ZIP and extracted to my storage. If your hardware requures you to update via manufacturer website, please follow that instruction.
Uninstalled the current graphics driver (reboot) and installed the latest downloaded drivers (reboot) - for manual driver update.
Removed ANT+ dongle and reattach again for auto detection.