OpenLCA crashes when hovering "Description"

Question

Hello.
I've come across an issue, and I was wondering if someone else has experienced it.

I do as follows:

Open any process from a database > Go to the Inputs/Outputs tab > In the Inputs table, hover the mouse over the description column/field of any input > [software freezes]

In previous versions of OpenLCA I've used, when I hovered over the description field (without left-clicking), the program would show a small textbox with the contents of the description field. Now, it crashes.

What could be the issue?

Thank you in advance.

EDIT:

Software: OpenLCA version 2.5.0
Operating System: Windows 11

Answer 1

Thank you for reporting - which version are you using, and on which operation system?

(@all, be aware that such a report is much more useful for us if these "details" are provided as well. It is for you probably clear which version you are using but not for us, and since openLCA is developed further, the behaviour is not the same across different versions. Thank you!)

Also edit: thank you for the details! However here, this did not help too much, I was using 2.5 (until switching to 2.6 two days ago or so) since release, on Windows, on different computers, and did not have this behaviour. Does the log file indicate anything? Do you have a very weak graphic card or processor on the computer? Can you try if you have the same behaviour in 2.6 (in downloads, other, development releases)? Thank you again.

Comments

Thank you for checking in and for the feedback!
I've edited the main post with the information asked :)

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I come across the same issue with same configuration (computer with 24 Go of RAM, using database ecoinvent 3.11).

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I have the same issue, tried it on two different computers, with openLCA 2.5 and 2.6, and ecoinvent 3.11 and 3.12. Interestingly, this doesn't happen with all descriptions, just some. For example, the "tofu production | tofu | Cutoff, U" Output "tofu" description always makes my openLCA crash.

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(so again, does the log file say anything? Thank you)

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This was my log from that day:

Log session start time Thu Apr 16 07:53:08 CEST 2026

Log session start time Thu Apr 16 12:01:05 CEST 2026

Date    Level    Logger    Message
07:53:08    WARN    com.zaxxer.hikari.pool.HikariPool    HikariPool-1 - Thread starvation or clock leap detected (housekeeper delta=10h3m15s838ms602µs400ns).
09:20:28    WARN    com.zaxxer.hikari.pool.HikariPool    HikariPool-1 - Thread starvation or clock leap detected (housekeeper delta=51m20s74ms815µs200ns).
10:29:41    WARN    com.zaxxer.hikari.pool.HikariPool    HikariPool-1 - Thread starvation or clock leap detected (housekeeper delta=30m47s329ms75µs300ns).
11:16:17    WARN    com.zaxxer.hikari.pool.HikariPool    HikariPool-1 - Thread starvation or clock leap detected (housekeeper delta=38m41s425ms790µs100ns).
11:22:28    INFO    org.openlca.core.database.Derby    database closed
11:22:28    INFO    org.openlca.core.database.Derby    initialize database folder C:\Users\tobia\openLCA-data-1.4\databases\ecoinvent 3.11 APOS Unit-Processes 2025-01-13, create=false
Log session start time Thu Apr 16 12:02:57 CEST 2026

Date    Level    Logger    Message
12:01:05    INFO    org.openlca    set log-level=INFO
12:01:05    INFO    org.openlca.app.rcp.RcpActivator    start openLCA 2.5.0, install location=C:\Users\tobia\AppData\Local\openLCA, workspace=C:\Users\tobia\openLCA-data-1.4
12:01:06    INFO    org.openlca.core.matrix.solvers.mkl.MKL    loaded MKL DLL C:\Users\tobia\AppData\Local\openLCA\olca-mkl-x64_v1\mkl_rt.2.dll
12:01:06    INFO    org.openlca.core.matrix.solvers.mkl.MKL    loaded MKL DLL C:\Users\tobia\AppData\Local\openLCA\olca-mkl-x64_v1\olcamkl.dll
12:01:06    INFO    org.openlca.core.matrix.solvers.mkl.MKL    loaded MKL libraries v1 from C:\Users\tobia\AppData\Local\openLCA\olca-mkl-x64_v1
12:01:06    INFO    org.openlca.app.App    loaded MKL libraries from C:\Users\tobia\AppData\Local\openLCA
12:01:46    INFO    org.openlca.core.database.Derby    initialize database folder C:\Users\tobia\openLCA-data-1.4\databases\ecoinvent 3.11 Cutoff Unit-Processes 2025-01-13, create=false
Log session start time Thu Apr 16 12:09:06 CEST 2026

Date    Level    Logger    Message
12:02:58    INFO    org.openlca    set log-level=INFO
12:02:58    INFO    org.openlca.app.rcp.RcpActivator    start openLCA 2.5.0, install location=C:\Users\tobia\AppData\Local\openLCA, workspace=C:\Users\tobia\openLCA-data-1.4
12:02:58    INFO    org.openlca.core.matrix.solvers.mkl.MKL    loaded MKL DLL C:\Users\tobia\AppData\Local\openLCA\olca-mkl-x64_v1\mkl_rt.2.dll
12:02:58    INFO    org.openlca.core.matrix.solvers.mkl.MKL    loaded MKL DLL C:\Users\tobia\AppData\Local\openLCA\olca-mkl-x64_v1\olcamkl.dll
12:02:58    INFO    org.openlca.core.matrix.solvers.mkl.MKL    loaded MKL libraries v1 from C:\Users\tobia\AppData\Local\openLCA\olca-mkl-x64_v1
12:02:58    INFO    org.openlca.app.App    loaded MKL libraries from C:\Users\tobia\AppData\Local\openLCA
12:04:40    INFO    org.openlca.core.database.Derby    initialize database folder C:\Users\tobia\openLCA-data-1.4\databases\ecoinvent 3.11 Cutoff Unit-Processes 2025-01-13, create=false
Log session start time Thu Apr 16 12:12:20 CEST 2026

Date    Level    Logger    Message
12:09:06    INFO    org.openlca    set log-level=INFO
12:09:06    INFO    org.openlca.app.rcp.RcpActivator    start openLCA 2.5.0, install location=C:\Users\tobia\AppData\Local\openLCA, workspace=C:\Users\tobia\openLCA-data-1.4
12:09:06    INFO    org.openlca.core.matrix.solvers.mkl.MKL    loaded MKL DLL C:\Users\tobia\AppData\Local\openLCA\olca-mkl-x64_v1\mkl_rt.2.dll
12:09:06    INFO    org.openlca.core.matrix.solvers.mkl.MKL    loaded MKL DLL C:\Users\tobia\AppData\Local\openLCA\olca-mkl-x64_v1\olcamkl.dll
12:09:06    INFO    org.openlca.core.matrix.solvers.mkl.MKL    loaded MKL libraries v1 from C:\Users\tobia\AppData\Local\openLCA\olca-mkl-x64_v1
12:09:06    INFO    org.openlca.app.App    loaded MKL libraries from C:\Users\tobia\AppData\Local\openLCA
12:09:57    INFO    org.openlca.core.database.Derby    initialize database folder C:\Users\tobia\openLCA-data-1.4\databases\ecoinvent 3.12 Cutoff Unit 2025-12-19, create=false

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is it the same in openLCA 261?