Noticed bug in Micsig STO1104E Plus. Zoom in during stop mode (10ms/div or slower) shows empty screen with fastest time bases.
Setup - single channel enabled, normal sampling, auto trigger mode, edge trigger, auto memory. Set time base to 50ms/div (70M, 100MSa/s), then stop scope and zoom-in to max level - 2ns/div does not show any data points. Sample points on 5ns/div are still visible, sample size is enough to be shown on 2ns/div.
Doing the same from 10ms/20ms/... divisions scope also get to 2ns, but no data is shown on the screen

There are some samples for these timebases to display but for some reason it is not shown.
Both vector and dot mode works the same. There is difference on whether memory size is auto or manual, but the bug persists.
Auto memory, single channel enabled:
- 5ms/div, 70M, 1GSa/s, visible to 2ns/div
- 10ms/div, 70M, 500MSa/s, visible to 2ns/div
- 20ms/div, 70M, 250MSa/s, visible to 2ns/div
- 50ms/div, 70M, 100MSa/s, visible to 5ns/div, 2ns/div not visible
- 100ms/div, 70M, 50MSa/s, visible to 10ns/div, 5ns/div not visible
- 200ms/div, roll mode, 700k, 250kSa/s, visible to 2us/div, 1us/div and faster not visible
With with max memory (70M) enabled manually:
- 200ms/div, roll mode, auto - 70M, 25MSa/s, visible to 20 ns/div, 10 ns/div not visible
- 500ms/div, roll mode, auto - 70M, 10MSa/s, visible to 50 ns/div, 20 ns/div not visible
- 1s/div, roll mode, auto - 70M, 5MSa/s, visible to 100 ns/div, 50 ns/div not visible
- 2s/div, roll mode, auto - 70M, 2.5MSa/s, visible to 200 ns/div, 100 ns/div not visible
This a bug in FW - sampled data is not shown in fast timebases. Can anyone confirm this issue?
@Micsig_support, is there FW update planned for STO1000E series?