diff --git a/algo/detectors/rich/UnpackMS.cxx b/algo/detectors/rich/UnpackMS.cxx
index c59e211949b6908031f3d15a779f351ea73878ab..0fa5bb9d794a08e3b46a3fce4d7c6fcfa0363b1b 100644
--- a/algo/detectors/rich/UnpackMS.cxx
+++ b/algo/detectors/rich/UnpackMS.cxx
@@ -102,7 +102,8 @@ namespace cbm::algo::rich
       totalSize += (1 + subSubEventSize);
 
       if (!isLast) {                                 // all except last are DiRICH events
-        if (((subSubEventId >> 12) & 0xF) != 0x7) {  // catch invalid ids
+        uint16_t sSubSubEvtIdMsb = (subSubEventId >> 12) & 0xF;
+        if ((sSubSubEvtIdMsb != 0x7) && (sSubSubEvtIdMsb != 0x9)) {  // catch invalid ids: mRICH, mFSD, PASTA/MUST
           ctx.monitor.fNumErrInvalidHubId++;
         }
         if (totalSize == hubSize) {
diff --git a/reco/detectors/rich/unpack/CbmRichUnpackAlgo2022.cxx b/reco/detectors/rich/unpack/CbmRichUnpackAlgo2022.cxx
index 45f84e55e4b207c23aaa906013d7f827c9b0dd3d..e19d82510716d2a0e6305fc182a14ee4153a8baf 100644
--- a/reco/detectors/rich/unpack/CbmRichUnpackAlgo2022.cxx
+++ b/reco/detectors/rich/unpack/CbmRichUnpackAlgo2022.cxx
@@ -103,9 +103,13 @@ void CbmRichUnpackAlgo2022::processHubBlock(CbmRichUnpackAlgoMicrosliceReader& r
 
     if (!isLast) {  // DiRICH event
       // check correctness of subsub event, for safety reasons
-      if (((subSubEventId >> 12) & 0xF) != 0x7) {
-        LOG(error) << getLogHeader(reader) << "ERROR: subSubEventId has strange value:0x" << std::hex << subSubEventId
-                   << std::dec;
+      uint16_t sSubSubEvtIdMsb = (subSubEventId >> 12) & 0xF;
+      if ((sSubSubEvtIdMsb != 0x7) && (sSubSubEvtIdMsb != 0x9)) {
+        if (0 == fUnexpectedIds.count(subSubEventId)) {
+          LOG(error) << getLogHeader(reader) << "ERROR: subSubEventId has strange value:0x" << std::hex << subSubEventId
+                     << std::dec;
+          fUnexpectedIds.insert(subSubEventId);
+        }
       }
       processSubSubEvent(reader, subSubEventSize, subSubEventId);
     }
diff --git a/reco/detectors/rich/unpack/CbmRichUnpackAlgo2022.h b/reco/detectors/rich/unpack/CbmRichUnpackAlgo2022.h
index 47a9a613739a8e7a47fd50a6d608f51138501eb7..ca6aaa6e52515970dd679ad287d7b201faed4f53 100644
--- a/reco/detectors/rich/unpack/CbmRichUnpackAlgo2022.h
+++ b/reco/detectors/rich/unpack/CbmRichUnpackAlgo2022.h
@@ -8,14 +8,14 @@
  * @brief Baseclass for the TrdR unpacker algorithms
  * @version 0.1
  * @date 2021-04-21
- * 
+ *
  * @copyright Copyright (c) 2021
- * 
- * This is the base class for the algorithmic part of the tsa data unpacking 
+ *
+ * This is the base class for the algorithmic part of the tsa data unpacking
  * processes of the CbmTrd.
- * The actual translation from tsa to digi happens in the derived classes. 
- * 
- * 
+ * The actual translation from tsa to digi happens in the derived classes.
+ *
+ *
 */
 
 #ifndef CbmRichUnpackAlgo2022_H
@@ -34,6 +34,7 @@
 #include <cstdint>
 #include <iomanip>
 #include <memory>
+#include <unordered_set>
 #include <utility>
 
 class CbmRichUnpackAlgo2022 : public CbmRichUnpackAlgoBase {
@@ -74,13 +75,13 @@ class CbmRichUnpackAlgo2022 : public CbmRichUnpackAlgoBase {
 
   /**
    * @brief Unpack a given microslice. To be implemented in the derived unpacker algos.
-   * 
+   *
    * @param ts timeslice pointer
    * @param icomp index to the component to be unpacked
    * @param imslice index of the microslice to be unpacked
-   * @return true 
-   * @return false 
-   * 
+   * @return true
+   * @return false
+   *
    * @remark The content of the µslice can only be accessed via the timeslice. Hence, we need to pass the pointer to the full timeslice
   */
   bool unpack(const fles::Timeslice* ts, std::uint16_t icomp, UInt_t imslice);
@@ -100,6 +101,8 @@ class CbmRichUnpackAlgo2022 : public CbmRichUnpackAlgoBase {
   int fCurrentSubSubEvent = 0;
 
  private:
+  std::unordered_set<uint16_t> fUnexpectedIds = {};
+
   ClassDef(CbmRichUnpackAlgo2022, 2)
 };