First of all, sorry if my other thread was a duplicate, this title wasn't very descriptive and when I searched for similar issues I couldn't tell this would be from the title.
But yes, I'm having a similar issue and I assume the solution is to just wait until things solve themselves.
:: Synchronizing package databases...
system is up to date
world 4,9 MiB 4,03 MiB/s 00:01 [############################] 100%
galaxy 788,3 KiB 762 KiB/s 00:01 [############################] 100%
universe is up to date
extra 7,4 MiB 6,24 MiB/s 00:01 [############################] 100%
community is up to date
multilib is up to date
lib32 is up to date
:: Starting full system upgrade...
resolving dependencies...
looking for conflicting packages...
error: failed to prepare transaction (could not satisfy dependencies)
:: installing protobuf (28.0-1) breaks dependency 'libprotobuf.so=27.3.0-64' required by mumble
Am I right in assuming I should just wait?