CS0006 metadata file could not be found on build in Rider

I am experiencing build problems with several c# solutions in Rider (both net8 and net9).

After a solution was building and working as expected, sometimes after getting git update, sometimes after switching between branches, the solution stops building.

1. it says that CS0006: metadata file for xxxx.dll that this project is referencing could not be found

2. running `dotnet build`  from the command like builds the solution as expected

3. running `Build whole solution` does not help

4. cleaning .idea, bin, obj folders does not help

5. `Reload all projects` does not help

6. `Rebuild solution` does not help

so what works most of the time is that I need to expand the solution, individually select every project  (multi-select) and do `rebuild selected project`. Why `Rebuild solution` does not help, but selecting each project separately helps is a mystery to me.

I check the path of the dll where the error is pointing to and the dll is not there after the build.

it does not look like there is a difference if I target a single or multiple frameworks.

what could be the problem?

JetBrains Rider 2024.3.6
Build #RD-243.25659.34, built on February 27, 2025
Runtime version: 21.0.6+8-b631.39 amd64 (JCEF 122.1.9)
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
Toolkit: sun.awt.X11.XToolkit
Linux 6.1.0-31-amd64
LMDE 6 (faye); glibc: 2.36
.NET Core v8.0.11 x64 (Server GC)
GC: G1 Young Generation, G1 Concurrent GC, G1 Old Generation
Memory: 4000M
Cores: 16
Registry:
 ide.experimental.ui=true
 terminal.new.ui=true
 llm.show.ai.promotion.window.on.start=false
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 dev.turingcomplete.intellijdevelopertoolsplugins (6.3.0)
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 Abc.MoqComplete.Rider (2024.1.1.1)
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 com.intellij.mermaid (0.0.24+IJ.243)
 ru.adelf.idea.dotenv (2024.3)
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 net.seesharpsoft.intellij.plugins.csv (4.0.2)
 com.intellij.resharper.azure (4.3.9)
Current Desktop: X-Cinnamon