I have had the same problem both on Huawei P10 with dozens of sequences.
I'll try the 3.51 snapshot when I have a chance.
The latest (beta) releases have also been a bit "sloppy" / buggy in taking photos. That is, the app takes pretty long breaks at times from taking photos -- and then it seems to play a bit of catch up (taking photos in sort of bursts). I haven't checked even time stamps, and so obviously not EXIF tags of photos taken.
I did try to change the distance between taken photos (varying between 3, 5 and 10) but that didn't seem to make a difference.
The newest versions have also had problem with remembering the mode of auto capture, btw. On my device with v.3.50 (and I think the previous, 3.49 I assume) the app resets the mode from distance based capture to time based capture seemingly every time I switch from auto capture to manual and back. (sorry for not posting this finding separately at least for now..).