As the title says, RAV did not make a payment while in the hospital for a month. The RAV agent has been notified for the situation.
I assume some other 'disability' insurance takes over..? I searched the goverment sites (and EF) but with limited German is too fine of an issue. Any help? Thanks in advance!

I was under the impression sickness pay is made for upto 3 months, then nothing. Having not been I'll whilst receiving benefits I can't tell you how it's done.

Your RAV councillor should help you with this, email or phone them. Have you filled in your 'claim' form for the month in question?

I think it only amounts to the equivalent of one months Sick leave in the whole time that you are registered with the RAV.

Apparently, you need to also have your own insurance policy which kicks in after either one month or 3 months and pays out so much per day Tagesgeld (up to 2 years). This is optional.

This costs a few grand a year. Usually you can continue your previous employers insurance, but the premium increases in relation to how ill you have been and can stipulate exclusions. Mine wanted 9000 CHF a year for 265 CHF per day cover (Allianz)

This was my experience - it may depend on which company you worked for and health circumstances.