Hi @MarkDJ welcome to the /e/ forum. It looks like you already did the Search and found for instance, Missing Dual SIM settings for FP3+ /e/OS - #10 by Shenol, to take this further I would recommend you Report an issue.
Hi @MarkDJ welcome to the /e/ forum. It looks like you already did the Search and found for instance, Missing Dual SIM settings for FP3+ /e/OS - #10 by Shenol, to take this further I would recommend you Report an issue.