Solution was made by Bernie as per below message on MS DevOps:


[15:33] Bernie Thibeault
Great! Permission issue - the field users only have edit permissions on their own records via it getting shared with them, but did not have any permissions to edit records via their security role. Evidently that is a pre-requisite for editing via sharing
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<https://teams.microsoft.com/l/message/19:[email protected]/1622061208417?tenantId=58dcae11-4dec-4930-a3b7-740a84daa63d&amp;groupId=01c3d31b-3c2e-40bb-acaa-85ed5fd902a0&amp;parentMessageId=1622043080254&amp;teamName=MS DevOps&amp;channelName=General&amp;createdTime=1622061208417>