Error in POS (but POS working)

Hello,

Got a little error when lauching POS with latest version (9.1.0). Default client is now successfuly selected at launch.

libs.min.js?ver=1507122657.0:24 Uncaught (in promise) TypeError: Cannot read property ‘getBoundingClientRect’ of null
at m._setMeasurements (libs.min.js?ver=1507122657.0:24)
at new m (libs.min.js?ver=1507122657.0:24)
at Class.init (list.min.js?ver=1507122657.0:1177)
at new Class (desk.min.js?ver=1507122657.0:41)
at Class.make_tags (form.min.js?ver=1507122657.0:4622)
at Class.make (form.min.js?ver=1507122657.0:4566)
at _f.Frm.render_form (form.min.js?ver=1507122657.0:543)
at form.min.js?ver=1507122657.0:635
at

And then 1-2 seconds later, once again:

libs.min.js?ver=1507122657.0:24 Uncaught (in promise) TypeError: Cannot read property ‘getBoundingClientRect’ of null
at m._setMeasurements (libs.min.js?ver=1507122657.0:24)
at new m (libs.min.js?ver=1507122657.0:24)
at Class.init (list.min.js?ver=1507122657.0:1177)
at new Class (desk.min.js?ver=1507122657.0:41)
at Class.make_tags (form.min.js?ver=1507122657.0:4622)
at Class.make (form.min.js?ver=1507122657.0:4566)
at _f.Frm.render_form (form.min.js?ver=1507122657.0:543)
at _f.Frm.refresh (form.min.js?ver=1507122657.0:498)
at erpnext.min.js?ver=1507122657.0:599
at

Everything seems to work well though… Default client is polled… Will test more during the day.