android devices use low powered arm processors and its only recently that you have more powerful ones. in order to keep cost down, what most manufacturers do is to use older chipset - android 10 for example may still work on some older chipset (chipset such as the one using Cortex-A53 processor) without the proper hardware driver such as gpu - such may cause issues with our app especially the latest ones relies on the hardware GPU. most of the issue can be seen when trying to play videos.
the first thing to try is enabling Texture Video in the video's property when placed in a scene or channel and see if it makes the playback more stable. note that in some cases, video will not play at all when this property is enabled which means your hardware GPU is not implemented properly or is simply not capable.
another thing to try is to recode the video to mp4 with the following codec settings:
Video: h.264, 24fps, 4mbps, 1920x1080 max resolution
Audio: acc, 44khz, 176kbps
video needs audio track even if there is no sound otherwise, the app can crash. you can use converters such freemake from:
http://www.freemake.com/free_video_converter/ and recode the videos to match the above codec settings.
best regards
-Admin
