Everything appears okay now. Sent some coins to Poloniex without any issue.
Seems the RIC network is more robust that it used to be

What may have happened? Some nodes and even blockchains showed an error message due to some miners

I think RLGzidMRkhfqEWjUY8fVxmgLS7HCdogXYN may have attempted fork
If you'll notice they did not solve any blocks between 760085 and 760121. The block explorer hung at block 760086, doesn't seem like a coincidence to me
At least Riecoin is at a point where it can better deal with these types of attacks

My purse. But I did not do any kind of fork, I also had mistakes.