I faced nothing like that when I inserted my secondary Jio sim in JioFi to connect with Solar panel and re insert in my 4G smartphone.Not even JioFi users able to access internet
I was using jio 4g on my jiofi M2s device
On 22 july i inserted that sim on my newly purchased cmf phone 1 and opted jio true5g unlimited welcome offer
After that i inserted that sim in jiofi again just to use 4g speed net again on wifi
No ipv4 address anymore just ipv6 internet
And most websites not working as they are ipv4 only
But on cmf phone 1 same sim works well with ipv4 and ipv6 both