Can’t save multi mode?

Please let me know if there is something I can do to fix this.

I recently purchased a used virus TI and I am unable to save in multi mode. I followed the direction in the manual and press store, I can see the name of the multi mode has saved and it looks like it was successfully saved but then when I power down the Virus it hasn’t saved. I updated it twice it's running on 5.1.7. Am I missing something or is there an issue with the synth? I don't know if this is related but every time I connect it to my computer to use it with the Virus software it has to sync, and initialize it takes about 15 minutes. Thanks Y’all!

Thanks for replying to my question. Yeah I think that has to be the problem. No, nothing is saving right now.

I have a old MC-909 synth, it must have a similar internal battery, right? Would you recommend replacing that to before it dies? I would lose everything.

Thanks again for your help. I installed the battery and it saves now. There wasn’t even a battery in there.