A problem of hairpin display of dense dynamic markings

A problem of hairpin display of dense dynamic markings

I inputted the following dynamics in Page View:
Screen Shot 2020-08-29 at 17.14.00.png
In Gallery View, the hairpin is not displayed:
Screen Shot 2020-08-29 at 17.14.00.png
How could I resolve the problem?

Thanks in advance.
Screen Shot 2020-08-29 at 17.14.13.png

Thank you very much!