We've upgraded a Qlik Sense customer site to May 2023 Patch 6 (from a previous 2021 release) and Text&Image objects flash several times before becoming steady. This issues happened years ago https://support.qlik.com/articles/000070095 .
..it is an interesting #behaviour since flashing stops on Chrome and Edge Chromium but never end on Firefox. Possible solution is to substitute text with KPI Objs but we'd like to understand if there is a workaound
Other note: the server has "only" 4 Xeon Gold CPU cores; We've in plan to upgrade a bigger site with 3 nodes and several Xeon cores - it is not clear if the "flashing" issue depends only on the #javascript code. Contributes are welcome.
