chromium -version
Chromium 69.0.3497.81 built on Debian 9.5, running on Debian 9.5
Removing the version and installing a version such as chromium_67.0.3396.87-1~deb9u1_armhf.deb seems to fix the issue. Please investigate or advise what further info is needed.
This is using tinker-board-linaro-stretch-alip-v2.0.7.img with apt-get update & upgrade run after a clean re-image of the SD card.