srcset does not update after changing image src

2 sites affected here. Same symptoms (ok in preview, not ok on different device/browser combos live). 1st noticed Feb 23 on 1 site. FWIW: here’s text of bug report sent to Wix (removed page base URLs):

Have 2 sites affected by the issue(s) described by others at

All contexts are ok in preview. Wide range of device/browser variations in live:

/paintings (first noticed today)

  • #image (not in a repeater) : no worky on live with 1. chrome on laptop, 2. iPadPro Safari/Chrome (page not designed for mobile)
  • images in repeaters on this page work fine

/about-us (first noticed Feb 23, would intermittently work, today consistently not working as noted below)

  • #staff repeater : ok in live on 1. iphone12p, 2. iPadPro Safari; not ok on 1. chrome laptop, 2. iPadPro Chrome

/staff (first noticed Feb 23, but consistently not working since then)

  • #image (not in a repeater) : not working on 1. chrome laptop, 2. iPadPro Chrome, Safari (page not designed for mobile)